Question

Sand is being dropped on a conveyer belt at the rate of M kg/. The force necessary to keep the belt moving with a constant velocity of v m/ will be

(a) Mv/2 newton

(b) zero

(c) Mv newton

(d) 2 Mv netwon

Answer 1

Correct option (c) Mv newton

Explanation:

To keep the conveyer belt moving at v m/*,

force needed = vM newton.