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An object of mass, m is moving with a constant velocity, v. How much work should be done on the object in order to bring the object to rest? - CBSE Class 9 - Science

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Question

An object of mass, m is moving with a constant velocity, v. How much work should be done on the object in order to bring the object to rest?

Solution

Kinetic energy of an object of mass, m moving with a velocity, v is given by the expression,

`E_k=1/2"mv"^2`

To bring the object to rest, `1/2"mv"^2` amount of work is required to be done on the object.

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APPEARS IN

 NCERT Solution for Science Textbook for Class 9 (2018 to Current)
Chapter 11: Work and Energy
Q: 16 | Page no. 159

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Solution An object of mass, m is moving with a constant velocity, v. How much work should be done on the object in order to bring the object to rest? Concept: Work and Energy - Kinetic Energy.
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