Question

List - I	List - II
a) non-conservative force	e) depends on mass
b) conservative force	f) work done is independent of path
c) deceleration due to friction on rough horizontal surface	g) workdone depends on path
d) accelerating force on a smooth inclined surface	h) independent of mass

• A. a -g ;b-h;c-f ;d -e
• B. a-f ;b-e;c-h;d-g
• C. a-g ;b-f ;c-h;d-e
• D. a-e;b-g;c-h;d-f

Answer 1

Answer: (C)

a-g ;b-f ;c-h;d-e

For a non-conservative force, the mechanical energy is lost or convert into some other energy. So for different path of approach leads to different work done.

For conservative force the work done is independent of path because here energy is always conserve.

Acceleration or deceleration due to a frictional surface is given by, $ma=(F-\mu N)$ which is independent of mass of the body.

But for a body moving on a smooth inclined surface the acceleration is depends on the downward force only. There is nothing to balance it. So it depends on mass of the body.