College Physics
10th Edition
ISBN: 9781285737027
Author: Raymond A. Serway, Chris Vuille
Publisher: Cengage Learning
expand_more
expand_more
format_list_bulleted
Concept explainers
Textbook Question
Chapter 4, Problem 80AP
A magician pulls a tablecloth from under a 200-g mug located 30.0 cm from the edge of the cloth. The cloth exerts a friction force of 0.100 N on the mug and is pulled with a constant acceleration of 3.00 m/s2. How far does the mug move relative to the horizontal tabletop before the cloth is completely out from under it? Note that the cloth must move more than 30 cm relative to the tabletop during the process.
Expert Solution & Answer
Trending nowThis is a popular solution!
Students have asked these similar questions
A magician pulls a tablecloth from under a 200 g mug located 15.0 cm from the edge of the cloth. The cloth exerts a friction force of 0.100 N on the mug and is pulled with a constant acceleration of 3.00 m/s2. How far does the mug move relative to the horizontal tabletop before the cloth is completely out from under it? Note that the cloth must move more than 15 cm relative to the tabletop during the process.
After collecting so much Halloween candy, you want to find a secret place to eat it all without being bothered. You see a small hiding place on top of a neighbors shed. Luckily, the neighbor has a ramp that leads up to the roof of the shed. You pull your bag of candy with a mass of 6.2 kg up the frictionless ramp which is at an angle of 29 degrees above the horizontal. The bag has an acceleration of 1.81 m/s2 parallel to, and UP the ramp while you are pulling
-What is the Normal Force exerted on bag of candy by the ramp?
- What force do you need to pull with in order to give the bag an acceleration of 1.81 m/s2?
David throws a 50 kg cart down a ramp with an initial speed of vi = 6 m/s. The ramp is at an angle of 20◦, and the coefficient of kinetic friction between the cart and the ramp is µk = 0.25. Additionally, the coefficient of static friction is µs = 0.55. How much time does it take to reach Ryan who is 10 m away? Assume that the cart slides and doesn’t roll.
Chapter 4 Solutions
College Physics
Ch. 4.3 - Which of the following statements are true? (a) An...Ch. 4.3 - Which has greater value, a newton of gold on Earth...Ch. 4.3 - Respond to each statement, true or false: (a) No...Ch. 4.4 - A small sports car collides head-on with a massive...Ch. 4.5 - Consider the two situations shown in Figure 4.30,...Ch. 4.5 - For the woman being pulled forward on the toboggan...Ch. 4.6 - If you press a book flat against a vertical wall...Ch. 4.6 - A crate is sitting in the center of a flatbed...Ch. 4.6 - Suppose your friend is sitting on a sled and asks...Ch. 4 - Physics Review A hockey player strikes a puck,...
Ch. 4 - Four forces act on an object, given by A = 40.0 N...Ch. 4 - A force of 30.0 N is applied in the positive...Ch. 4 - What would be the acceleration of gravity at the...Ch. 4 - Two monkeys are holding onto a single vine of...Ch. 4 - Two identical strings making an angle of = 30.0...Ch. 4 - Calculate the normal force on a 15.0 kg block in...Ch. 4 - A horizontal force of 95.0 N is applied to a...Ch. 4 - Prob. 9WUECh. 4 - A block of mass 12.0 kg is sliding at an initial...Ch. 4 - A man exerts a horizontal force of 112 N on a...Ch. 4 - An Atwoods machine (Fig. 4.38) consists of two...Ch. 4 - A block of mass m1= 10 kg is on a frictionless...Ch. 4 - A passenger sitting in the rear of a bus claims...Ch. 4 - A space explorer is moving through space far from...Ch. 4 - (a) If gold were sold by weight, would you rather...Ch. 4 - If you push on a heavy box that is at rest, you...Ch. 4 - A ball is held in a persons hand. (a) Identify all...Ch. 4 - A weight lifter stands on a bathroom scale. (a) As...Ch. 4 - (a) What force causes an automobile to move? (b) A...Ch. 4 - If only one force acts on an object, can it be in...Ch. 4 - In the: motion picture It Happened One Night...Ch. 4 - Analyze the motion of a rock dropped in water in...Ch. 4 - Identify the action-reaction pairs in the...Ch. 4 - Draw a free-body diagram for each of the following...Ch. 4 - In a tug-of-war between two athletes, each pulls...Ch. 4 - Suppose you are driving a car at a high speed. Why...Ch. 4 - As a block slides down a frictionless incline,...Ch. 4 - A crate remains stationary after it has been...Ch. 4 - In Figure 4.4, a locomotive has broken through the...Ch. 4 - If an object is in equilibrium, which of the...Ch. 4 - A truck loaded with sand accelerates along a...Ch. 4 - A large crate of mass m is placed on the back of a...Ch. 4 - Which of the following statements are true? (a) An...Ch. 4 - The heaviest invertebrate is the giant squid,...Ch. 4 - A football punter accelerates a football from rest...Ch. 4 - A 6.0-kg object undergoes an acceleration of 2.0...Ch. 4 - One or more external forces are exerted on each...Ch. 4 - A bag of sugar weighs 5.00 lb on Earth. What would...Ch. 4 - A freight train has a mass of 1.5 107 kg. If the...Ch. 4 - A 75-kg man standing on a scale in an elevator...Ch. 4 - Consider a solid metal sphere (S) a few...Ch. 4 - As a fish jumps vertically out of the water,...Ch. 4 - A 5.0-g bullet leaves the muzzle of a rifle with a...Ch. 4 - A boat moves through the water with two forces...Ch. 4 - Two forces are applied to a car in an effort to...Ch. 4 - A 970.-kg car starts from rest on a horizontal...Ch. 4 - An object of mass m is dropped from the roof of a...Ch. 4 - After falling from rest from a height of 30.0 m, a...Ch. 4 - The force exerted by the wind on the sails of a...Ch. 4 - (a) Find the tension in each cable supporting the...Ch. 4 - A certain orthodontist uses a wire brace to align...Ch. 4 - A 150-N bird feeder is supported by three cables...Ch. 4 - The leg and cast in Figure P4.40 weigh 220 N (w1)....Ch. 4 - Two blocks each of mass m are fastened to the top...Ch. 4 - Two blocks each of mass m = 3.50 kg are fastened...Ch. 4 - The distance between two telephone poles is 50.0...Ch. 4 - The systems shown in Figure P4.58 are in...Ch. 4 - A 5.0-kg bucket of water is raised from a well by...Ch. 4 - A crate of mass m = 32 kg rides on the bed of a...Ch. 4 - Two blocks of masses m and 2m are held in...Ch. 4 - Two packing crates of masses 10.0 kg and 5.00 kg...Ch. 4 - Assume the three blocks portrayed in Figure P4.59...Ch. 4 - A block of mass m = 5.8 kg is pulled up a = 25...Ch. 4 - A setup similar to the one shown in Figure P4.53...Ch. 4 - Two blocks of masses m1 and m2 (m1 m2) are placed...Ch. 4 - A 276-kg glider is being pulled by a 1 950-kg jet...Ch. 4 - In Figure P4.63, the light, taut, unstretchable...Ch. 4 - (a) An elevator of mass m moving upward has two...Ch. 4 - An object with mass m1 = 5.00 kg rests on a...Ch. 4 - A 1.00 103 car is pulling a 300.-kg trailer....Ch. 4 - Two objects with masses of 3.00 kg and 5.00 kg are...Ch. 4 - A dockworker loading crates on a ship finds that a...Ch. 4 - In Figure P4.64, m1 = 10. kg and m2 = 4.0 kg. The...Ch. 4 - A 1.00 103-N crate is being pushed across a level...Ch. 4 - A block of mass 3m is placed on a frictionless...Ch. 4 - Consider a large truck carrying a heavy load, such...Ch. 4 - A crate of mass 45.0 kg is being transported on...Ch. 4 - Objects with masses m1 = 10.0 kg and m2 = 5.00 kg...Ch. 4 - A hockey puck struck by a hockey stick is given an...Ch. 4 - The coefficient of static friction between the...Ch. 4 - A student decides to move a box of books into her...Ch. 4 - An object falling under the pull of gravity is...Ch. 4 - A car is traveling at 50.0 km/h on a flat highway....Ch. 4 - A 3.00-kg block starts from rest at the top of a...Ch. 4 - A 15.0-lb block rests on a horizontal floor, (a)...Ch. 4 - To meet a U.S. Postal Service requirement,...Ch. 4 - Objects of masses m1 = 4.00 kg and m2 = 9.00 kg...Ch. 4 - The person in Figure P4.49 weighs 170. lb. Each...Ch. 4 - As a protest against the umpires calls, a baseball...Ch. 4 - Three objects are connected on a table as shown in...Ch. 4 - The force exerted by the wind on a sailboat is...Ch. 4 - (a) What is the resultant force exerted by the two...Ch. 4 - (a) What is the minimum force of friction required...Ch. 4 - A boy coasts down a hill on a sled, reaching a...Ch. 4 - A woman at an airport is towing her 20.0-kg...Ch. 4 - A box rests on the back of a truck. The...Ch. 4 - Three objects are connected by light strings as...Ch. 4 - A frictionless plane is 10.0 m long and inclined...Ch. 4 - A high diver of mass 70.0 kg steps off a board...Ch. 4 - A 2.00-kg aluminum block and a 6.00-kg copper...Ch. 4 - An object of mass m1 hangs from a string that...Ch. 4 - Two boxes of fruit on a frictionless horizontal...Ch. 4 - Measuring coefficients of friction A coin is...Ch. 4 - A fisherman poles a boat as he searches for his...Ch. 4 - A rope with mass m, is attached to a block with...Ch. 4 - A car accelerates down a hill (Fig. P4.87), going...Ch. 4 - Prob. 74APCh. 4 - The parachute on a race car of weight 8 820 N...Ch. 4 - On an airplanes takeoff, the combined action of...Ch. 4 - The board sandwiched between two other boards in...Ch. 4 - A sled weighing 60.0 N is pulled horizontally...Ch. 4 - A 72-kg man stands on a spring scale in an...Ch. 4 - A magician pulls a tablecloth from under a 200-g...Ch. 4 - An inventive child wants to reach an apple in a...Ch. 4 - A fire helicopter carries a 620-kg bucket of water...Ch. 4 - A crate of weight Fg is pushed by a force P on a...Ch. 4 - In Figure P1.84, the pulleys and the cord are...Ch. 4 - What horizontal force must ho applied to a large...
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.Similar questions
- You push an object, initially at rest, across a frictionless floor with a constant force for a time interval t, resulting in a final speed of v for the object. You then repeat the experiment, but with a force that is twice as large. What time interval is now required to reach the same final speed v? (a) 4 t (b) 2 t (c) t (d) t/2 (e) t/4arrow_forwardAn 8.00 kg box sits on a ramp that is inclined at 33.0 above the horizontal. The coefficient of kinetic friction between the box and the surface of the ramp is mk = 0.300. A constant horizontal force F = 26.0 N is applied to the box, and the box moves down the ramp. If the box is initially at rest, what is its speed 2.00 s after the force is applied?arrow_forwardIn the figure, block A has a mass of 4.00 kg. It rests on a smooth horizontal table and is connected by a very light horizontal string over an ideal pulley to block B, which has a mass of 3.5 kg. When block B is gently released from rest, how long does it take block B to travel 90 cm? B. O 0.404 s 0.785 s 0.494 s O 0.62 s O 0.935 s A.arrow_forward
- A 0.30 kg puck is being pushed across a table with a horizontal force of 2.0 N. It starts from rest and is pushed for 13 seconds, ending with a speed of 1 m/s. Calculate the coefficient of friction μk between the puck and the table.arrow_forwardA waitress shoves a ketchup bottle with mass 0.45 kg to her right along a smooth, level lunch counter. The bottle leaves her hand moving at 2.8 m/s, then slows down as it slides because of a constant horizontal friction force exerted on it by the countertop. It slides for 1.0 m before coming to rest. What is the magnitude of the friction force acting on the bottle?arrow_forwardA 5000 kg lorry gradually accelerates from rest. There is a box of mass 200 kg on the back of the lorry. The box is not tied to the lorry. The lorry accelerates from rest to a speed of 15 m/s over a certain distance. The maximum frictional force between the lorry and the box is 630 N. The maximum acceleration (in m/s^2) that the lorry can have without the box falling off is:arrow_forward
- A skier slides down a hill in a straight line. The hill is 60m high and the coefficient of kinetic friction between the snow and the skis is 0.1. The hill is at an angle of 10 degrees with the horizontal. The mass of the skier is 70 kg. If the skier starts her run from rest and air friction can be ignored, how fast is she moving at the bottom of the hill? Please answer in units of m/s.arrow_forwardA 5 kg block lies on a frictionless horizontal surface. It is connected to another 3kg block by a string that passes a frictionless pulley. What is the acceleration of the blocks? 5kg 3kg O 2.45 m/s^2 O 16.33 m/s^2 O 6.13 m/s^2 3.68 m/s^2arrow_forwardSuppose you are at a bowling alley, where a machine uses a constant force and pushes balls up a ramp one meter in length. The balls are sliding -- not rolling -- along the incline, and they end up half a meter above the base of the ramp. Ignore friction. Approximately how much force does the machine put on a 5 kg bowling ball? 1.0 m H 0.5 m 200 N 50 N 25 N O 5N Impossible to determinearrow_forward
- A car has a mass of 1750 kg. If the driver applies the brakes while on a gravel road, the maximum friction force that the tires can provide without skidding is about 6500 N. If the car is moving at 22 m/s, what is the shortest distance in which the car can stop safely?arrow_forwardA 10 kg box is being pushed across a rough surface with a constant speed of 2 m/s. The person pushing the box slips and stops pushing. The box continues to slide across the surface before coming to rest. If the coefficient of friction between the crate and the surface is 0.1, how far does the box travel before coming to rest?arrow_forwardA force of 12 N was used to pull a 6.0 kg block initially at rest along a horizontal surface that has a coefficient of kinetic friction of 0.15. Find the speed of the block after it has moved 3.0 m. 1.8 m/s O 8 m/s O v= 0 O The data is not enough to calculate the speedarrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Physics for Scientists and Engineers: Foundations...PhysicsISBN:9781133939146Author:Katz, Debora M.Publisher:Cengage LearningPrinciples of Physics: A Calculus-Based TextPhysicsISBN:9781133104261Author:Raymond A. Serway, John W. JewettPublisher:Cengage LearningGlencoe Physics: Principles and Problems, Student...PhysicsISBN:9780078807213Author:Paul W. ZitzewitzPublisher:Glencoe/McGraw-Hill
Physics for Scientists and Engineers: Foundations...
Physics
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Cengage Learning
Principles of Physics: A Calculus-Based Text
Physics
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
Glencoe Physics: Principles and Problems, Student...
Physics
ISBN:9780078807213
Author:Paul W. Zitzewitz
Publisher:Glencoe/McGraw-Hill
Conservative and Non Conservative Forces; Author: AK LECTURES;https://www.youtube.com/watch?v=vFVCluvSrFc;License: Standard YouTube License, CC-BY