Explanation Given data: Mass of the compact car ( m C ) is 900 kg. Mass of the meteor ( m M ) is 2.5 g, which is written as 2.5 × 10 − 3 kg . Speed of the meteor ( v M ) is 40 km s . Formula used: Write the expression for kinetic energy. K = 1 2 m v 2 (1) Here, m is the mass of the particle, and v is the velocity of the particle. Explanation: Calculation of kinetic energy of meteor: Modify the expression in equation (1) to find the kinetic energy of the meteor as follows. K M = 1 2 m M ( v M ) 2 Substitute 2.5 × 10 − 3 kg for m M , and 40 km s for v M . K M = 1 2 ( 2.5 × 10 − 3 kg ) ( 40 km s ) 2 = 1 2 ( 2.5 × 10 − 3 kg ) ( 40 × 10 3 m s ) 2 = 1 2 ( 2.5 × 10 − 3 kg ) ( 1600 × 10 6 m 2 s 2 ) = 2000 × 10 3 kg ⋅ m 2 s 2 Calculation of speed of compact car: Modify the expression in equation (1) to find the kinetic energy of the compact car as follows

4th Edition

ISBN: 9780134779218

Author: Knight

Publisher: PEARSON

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Question

Chapter 10, Problem 18P

To determine

To find: The required speed for the compact car in order to have the same kinetic energy as the meteor.

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Chapter 10, Problem 17P

Chapter 10, Problem 19P

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