Question

Does work done on a body depends on initial velocity of body?why?

Answer 1

Does work done depend upon the velocity of the body?

Work done according to its formulaic definition is a product of F (applied force) and d (distance moved in the direction of applied force).

Based upon this formulaic definition we can say that Work done has independent of the velocity of an object.

However, differentiating this expression with respect to time makes things a little interesting.

Differentiating this with respect to time, we would make come up with an expression for power.

Which is P (Power) = F (applied force) × v (velocity of the object in the direction of applied force).

Hence, we can see that Power does depend on the velocity of an object but not Work done.

Answer 2

yes it depends bcoz
W=F.S
W=ma.s
W=m(v-u)/t .s
v= final velocity
u= initial velocity
m=mass
t=time
s=displacement