Explanation Given data: The mass of the car is 1600 kg . Formula used: The expression for the kinetic energy of a body is: K = 1 2 m v 2 Here, m is the mass of the body and v is the speed of the body. Explanation: Consider the diagram: The area under force(applied by shed on the car) versus position curve of the car gives the internal potential energy stored in the shed. From the above force versus position curve, the internal potential energy stored in the shed is, Δ U int = ( 20000 N ) ( 7 m − 1 m ) = 120000 J = 1 .2 × 10 5 J Let, all the kinetic energy of the car before striking the shed gets converted into the internal potential energy of the shed after stopping the car due to strike in the shed

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ISBN: 9780134605500

Author: ETKINA

Publisher: PEARSON CO

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Instantaneous Power

Power is defined in physics as the amount of energy transmitted or transformed per unit time. The watt is the unit of electricity in the International System of Units, equivalent to one joule per second.

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Chapter 7, Problem 63P

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The speed of the car just before striking the shed from the following force versus position diagram, if a 1600-kg car penetrated into a shed and stops.

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Chapter 7, Problem 62P

Chapter 7, Problem 64P

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The speed of the car just before striking the shed from the following force versus position diagram, if a 160 0-kg car penetrated into a shed and stops.

Solution Summary: The author explains how the kinetic energy of a car before striking the shed is converted into the internal potential energy after stopping the car.

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The speed of the car just before striking the shed from the following force versus position diagram, if a 1600-kg car penetrated into a shed and stops.

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Chapter 7 Solutions