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CBSE - IX - Science

A bike and a car are brought to rest by applying same retarding force. If both come to rest after travelling same distance; which other physical quantity is same velocity, mass or kinetic energy? Give reasons justify the answer.

Asked by vatsalchoudhary41 27th February 2015, 3:26 PM
Answered by Expert

Answer:

A bike and a car brought to rest by applying same retarding force. If both travel same distance, during the journey till they come to zero, the velocity of both will change but mass will not change. As bike and car brought to rest their velocity will get decrease and reach to zero as they stop. As velocity decreses ultimately their kinetic energy also will get decrease and reach to zero. 
Answered by Expert 28th February 2015, 8:30 PM

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