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Work-Energy Theorem

Change in a v...

Question

Change in a vehicle's kinetic energy is equal to work done by frictional force on the brakes. True or False?

A

True

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B

False

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Solution

The correct option is A True
The change in kinetic energy is equal to the work done and considering law of conservation of energy the work done in changing the KE must be equal to the frictional force applied on the brakes.

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