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 ?​

Answer 1

HEY MATE

Mass of Object m

Velocity of object v

Work done Force Displacement

Force m a

So work done m* av

Third equation of motion,

v2 = u2 2as

s v2 - u2/ 2a

Now, Work done m a* (v2 - u2

2a)

m *(v2 -

= mv2/ 2 - mu2/2

So mv2 2-mu2 / work should be

done to make object at rest

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