s. Calculate average velocity and speed of the driver. 4. Using V-t graph derive equations of motion (i) v=u + at (ii) s=ut+½ at? 5. A driver of a car travelling at 54km/h applies the brakes decelerates uniformly and, the car stops in 5seconds. Another driver going at 45km/h applies his brakes slower and stopped in 10 seconds. On the (ii) v²=u²+2as. same graph paper, plot the velocity -time graph for two cars. Which of the two cars travelled farther after brakes were applied? 6. A truck driver driving on a straight highway with a velocity of 90km/h suddenly notices a child on the highway at 500m distance. If his response time is 3s then calculate the retardation which he should apply on brakes to just avoid the accident. A stone is thrown vertically upward direction with a velocity of 39.2m/s. If the acceleration of the stone during its motion is 9.8 ms in the downward direction, what will be the height attained by the 7. stone and how much time will it take to reach there? 8. Starting from rest Rohan paddles his bicycle to attain a velocity of 16m/s in 30s .Then he applies brake: such that the velocity of the bicycle comes down to 8m/s in the next 5s .Calculate the acceleration of the bicycle in both cases. Plot V-t graph for this motion and calculate total distance travelled by Rohan. 9. A ball is thrown up with a velocity of 40m/s in upward direction. Plot speed-time and velocity-time graph for the ball and calculate - (i) the time when ball will hit the ground back the maximum height attained by the ball. (ii)
s. Calculate average velocity and speed of the driver. 4. Using V-t graph derive equations of motion (i) v=u + at (ii) s=ut+½ at? 5. A driver of a car travelling at 54km/h applies the brakes decelerates uniformly and, the car stops in 5seconds. Another driver going at 45km/h applies his brakes slower and stopped in 10 seconds. On the (ii) v²=u²+2as. same graph paper, plot the velocity -time graph for two cars. Which of the two cars travelled farther after brakes were applied? 6. A truck driver driving on a straight highway with a velocity of 90km/h suddenly notices a child on the highway at 500m distance. If his response time is 3s then calculate the retardation which he should apply on brakes to just avoid the accident. A stone is thrown vertically upward direction with a velocity of 39.2m/s. If the acceleration of the stone during its motion is 9.8 ms in the downward direction, what will be the height attained by the 7. stone and how much time will it take to reach there? 8. Starting from rest Rohan paddles his bicycle to attain a velocity of 16m/s in 30s .Then he applies brake: such that the velocity of the bicycle comes down to 8m/s in the next 5s .Calculate the acceleration of the bicycle in both cases. Plot V-t graph for this motion and calculate total distance travelled by Rohan. 9. A ball is thrown up with a velocity of 40m/s in upward direction. Plot speed-time and velocity-time graph for the ball and calculate - (i) the time when ball will hit the ground back the maximum height attained by the ball. (ii)
Physics for Scientists and Engineers, Technology Update (No access codes included)
9th Edition
ISBN:9781305116399
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter2: Motion In One Dimension
Section: Chapter Questions
Problem 2.37P: A speedboat travels in a straight line and increases in speed uniformly from i = 20.0 m/s to f =...
Related questions
Concept explainers
Displacement, Velocity and Acceleration
In classical mechanics, kinematics deals with the motion of a particle. It deals only with the position, velocity, acceleration, and displacement of a particle. It has no concern about the source of motion.
Linear Displacement
The term "displacement" refers to when something shifts away from its original "location," and "linear" refers to a straight line. As a result, “Linear Displacement” can be described as the movement of an object in a straight line along a single axis, for example, from side to side or up and down. Non-contact sensors such as LVDTs and other linear location sensors can calculate linear displacement. Non-contact sensors such as LVDTs and other linear location sensors can calculate linear displacement. Linear displacement is usually measured in millimeters or inches and may be positive or negative.
Topic Video
Question
Transcribed Image Text:s. Calculate average velocity and speed of the driver.
4. Using V-t graph derive equations of motion (i) v=u + at (ii) s=ut+½ at?
5. A driver of a car travelling at 54km/h applies the brakes decelerates uniformly and, the car stops in
5seconds. Another driver going at 45km/h applies his brakes slower and stopped in 10 seconds. On the
same graph paper, plot the velocity -time graph for two cars. Which of the two cars travelled farther
after brakes were applied?
6. A truck driver driving on a straight highway with a velocity of 90km/h suddenly notices a child on the
(iii) v²=u²+2as.
highway at 500m distance. If his response time is 3s then calculate the retardation which he should
apply on brakes to just avoid the accident.
7. A stone is thrown vertically upward direction with a velocity of 39.2m/s. If the acceleration of the
stone during its motion is 9.8 ms in the downward direction , what will be the height attained by the
stone and how much time will it take to reach there?
8. Starting from rest Rohan paddles his bicycle to attain a velocity of 16m/s in 30s .Then he applies brakes
such that the velocity of the bicycle comes down to 8m/s in the next 5s .Calculate the acceleration of
the bicycle in both cases. Plot V-t graph for this motion and calculate total distance travelled by
Rohan.
9. A ball is thrown up with a velocity of 40m/s in upward direction. Plot speed-time and velocity-time
graph for the ball and calculate -
(i)
the time when ball will hit the ground back
the maximum height attained by the ball.
(ii)
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution!
Trending now
This is a popular solution!
Step by step
Solved in 5 steps with 1 images
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.Recommended textbooks for you
Physics for Scientists and Engineers, Technology …
Physics
ISBN:
9781305116399
Author:
Raymond A. Serway, John W. Jewett
Publisher:
Cengage Learning
College Physics
Physics
ISBN:
9781305952300
Author:
Raymond A. Serway, Chris Vuille
Publisher:
Cengage Learning
College Physics
Physics
ISBN:
9781938168000
Author:
Paul Peter Urone, Roger Hinrichs
Publisher:
OpenStax College
Physics for Scientists and Engineers, Technology …
Physics
ISBN:
9781305116399
Author:
Raymond A. Serway, John W. Jewett
Publisher:
Cengage Learning
College Physics
Physics
ISBN:
9781305952300
Author:
Raymond A. Serway, Chris Vuille
Publisher:
Cengage Learning
College Physics
Physics
ISBN:
9781938168000
Author:
Paul Peter Urone, Roger Hinrichs
Publisher:
OpenStax College
Principles of Physics: A Calculus-Based Text
Physics
ISBN:
9781133104261
Author:
Raymond A. Serway, John W. Jewett
Publisher:
Cengage Learning
An Introduction to Physical Science
Physics
ISBN:
9781305079137
Author:
James Shipman, Jerry D. Wilson, Charles A. Higgins, Omar Torres
Publisher:
Cengage Learning
Glencoe Physics: Principles and Problems, Student…
Physics
ISBN:
9780078807213
Author:
Paul W. Zitzewitz
Publisher:
Glencoe/McGraw-Hill