1. A dolphin is initially swimming at 7.2 km/hr, directly West. 7 seconds later, the dolphin is swimming 5.3 km/hr, 30° W of N. What was the dolphin's acceleration? (Use graphical addition or subtraction to make an estimate before doing any calculations. Compare the result of your calculations to the graphical addition or subtraction to determine if your answer is reasonable.)

1. A dolphin is initially swimming at 7.2 km/hr, directly West. 7 seconds later, the dolphin is swimming 5.3 km/hr, 30° W of N. What was the dolphin's acceleration? (Use graphical addition or subtraction to make an estimate before doing any calculations. Compare the result of your calculations to the graphical addition or subtraction to determine if your answer is reasonable.)

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter1: Units And Measurement

Section: Chapter Questions

Problem 82AP: (a) A car speedometer has a 5% uncertainty. What is the range of possible speeds when it reads 90...

See similar textbooks

Similar questions

4. A runner goes North for 3 km, then turns and heads South for 5 km, then turns North gogin gint dops not TU 3 d sit bno 35MATZI0 at dtod aya took. for 4 km. Draw a diagram in part "a" to show the path the 29notzib 1ot noitibbo- b. What DISPLACEMENT did the runner a. What DISTANCE did the runner go? mu1osiT nos1opority9 art onizhave at the end of the trip? (length and direction) .m0L ot dtno nat ml 010t dtuo2 aboord girda sziuɔ A I loot toɔ art dtoq sit worlz ot "o" troq ni monpoib D wond Sanop sɔnotaib alt 2ow tordW.D Stasmscplgaib sit 2ow tordW.d (anop noitasnib bno dtpnsl) 5. A hoverboard rider goes straight down Arkansas Avenue for 2 miles, then turns left and goes straight for 3 miles, then turns right and goes 1 mile before stopping. Draw a diagram in part "a" to show the path the hoverboard rider took. 1stam 08 1b. What. Whet srltono not tripionte ow bno nippo tdoin have at the end of the trip? (length and a. What DISTANCE did the rider go? PLACEMENT did the ridert2ol A S Which…
Dwight decides to race around the perimeter of the Scranton business parkin an effort to beat another employee’s best running time. Assuming heruns with an average velocity of 10 ft/s, and he completes 4 laps in 5minutes,a. What is the perimeter of the business park in feet?b. In meters?( 1 ft = 0.3048 m )
In a total time of 3.0 minutes, a duck on a pond paddles 31 m [N33oE] and then paddlesanother 57 m [E28oS]. Solve for the displacement graphically (with a ruler andprotractor) and then answer the questions. Using the displacement you determined from your graph, what was the duck’s average velocityfor the trip? What total distance did the duck travel? What was the average speed of the duck for the whole trip?
O False The correct conversion of speed limit of 65 mi/h in terms of SI unit is (Given 1 mile = 1.609 km) O a. 234 m/s O b. 29.05 m/s O c. 18.06 m/s O d. 16.67 m/s For anything DELL
V/A Spelunlier drops astone off of aclıff inadarl cave at the instmat he starts his stonwatch.Hehears the stone hit water 1.3secends utter he releases it. How fe below is the water? Give yor mswer in feed. A27.2 ft B 8.3 t7 ८घ दा cis.4 ft D)9.0 t# 3D. 2 ft
Let's say you ride your bike from your house to your friend's house. To get there uou have to go 4.00 miles south, 8.00 miles west, then 6.00 miles north. This trip takes 32.5 minutes.a. What is your average speed for the trip in miles per minute? b. What is your average velocity for the trip in miles per minute?
Grey Maxi... Home Hurry,... Current Time: 10:05:02 PM general.physics.rutgers.edu R List by Da... Practice Assignment Sole et. Al... Untitled d... km Ć Dashboard Homework Time Left: 1 hours 50 minutes R General P... Assignme... Log Out 4. Consider the following three displacement vectors: Vector A has a magnitude of 3.80 km and a direction that makes an angle of 36.0° south of west, vector B has a magnitude of 6.50 km and a direction that makes an angle of 15.0° north of west, vector C has a magnitude of 3.50 km and a direction that makes an angle of 37.0° north of east. Determine the magnitude of the vector X = B+C - A km 5. Two cars are traveling along a straight road. Car (A) maintains a constant speed of 88.0 km/h; car (B) maintains a constant speed of 115 km/h. At t = 0, car (B) is 49.0 km behind car A. How far will car (A) travel from t = 0 before it is overtaken by car (B)? 1 6
31. Bob walks 200 m south, then jogs 400 m southwest, then walks 200 m in a direction 300 east of north. a. Draw an accurate graphical representation of Bob?s motion. Use a ruler and a protractor! h. Use either trigonometry or components to find the displacement that will return Bob to his starting point by the most direct route. Give your answer as a distance and a direction. c. Does your answer lo part b agree with what you can measure on your diagram of part a?
Please solve the 2 problems. 1. A ball rolling at a rate of 2km/hr was brought to stop in 10 seconds. Find its acceleration. Express youf answer in m/s². 2. If a person can run a distance of 20 km in three hours, what is the person's velocity. Express your answer in m/s.
Mr. Brown takes a walk in the park. He first travels 600. m NW and then turns and walks 800. m @ 20.0° WoS. What is his overall displacement of his walk? Use the triangle method to solve this. Should you use the component method, I will award zero points. I know the answer, I just don’t know how to get it. Answer: 771 m @ 25.1° SoW Thanks!!
6. A bicyclist rides at 430 ft/min. If they ride for 45 min, how far have they 6. A bicyclist rides at 430 ft/min Tf they ride for 45 min, how far have they gone? a. 0.105 ft 9.56 ft 19350 ft d. 475 ft e. 430 ft
A truck travels with a speed of 59 mi/h. This speed in S.I. units is (Given 1 mile = 1.609 km) O a. 212.40 m/s O b. 26.37 m/s O c. 132.01 m/s O d. 16.39 m/s