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a. What is the kinetic energy of a 1500 kg car traveling

Physics for Scientists and Engineers: A Strategic Approach with Modern Physics | 3rd Edition | ISBN: 9780321740908 | Authors: Randall D. Knight ISBN: 9780321740908 69

Solution for problem 4E Chapter 10

Physics for Scientists and Engineers: A Strategic Approach with Modern Physics | 3rd Edition

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Physics for Scientists and Engineers: A Strategic Approach with Modern Physics | 3rd Edition | ISBN: 9780321740908 | Authors: Randall D. Knight

Physics for Scientists and Engineers: A Strategic Approach with Modern Physics | 3rd Edition

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Problem 4E

Problem 4E

a. What is the kinetic energy of a 1500 kg car traveling at a speed of 30 m/s (≈ 65 mph)?

b. From what height would the car have to be dropped to have this same amount of kinetic energy just before impact?

c. Does your answer to part b depend on the car’s mass?

Step-by-Step Solution:

Solution 4E

Part (a)

Step 1 of 4:

Our aim is to find the kinetic energy of the car traveling at the speed given.

The mass of the car m = 1500 kg

The speed v = 30 m/s

The kinetic energy is given by

The kinetic energy of the car is 675 kJ.


Part (b)

Step 2 of 4

Chapter 10, Problem 4E is Solved
Step 3 of 4

Textbook: Physics for Scientists and Engineers: A Strategic Approach with Modern Physics
Edition: 3
Author: Randall D. Knight
ISBN: 9780321740908

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a. What is the kinetic energy of a 1500 kg car traveling