A person used force `(F)` , shown in figure to move a load with constant velocity on given surface. Identify the correct surface profile:

Options

A.
B.
C.
D.

Answer

C

Explanation

First a force is used to move the body when it has to be more than the static friction. Then the body starts moving and is getting accelerated. Thensuddenly the force is decreases to matcht the kinetic friction. The body then moves with a constant velocity.

Force ` le mu_(s)*N`.
Constant acceleration, velocity increases proportionately with time then sudeenly force applied is just equal to `mu_(K)V`. it is just sufficient to cancel friction. Whatever be the earlier maximum velocity attained will be continued.