Question

a boy pulls a wooden box along a rough horizontal floor at a constant speed by means of a force P, as shown in the figure. In diagram f is the magnitude of the frictional force, N is the magnitude of the normal force and Fg is the force of gravity. Indicates the true options

Answer 1

Explanation:

The F.B.D. of Block is as shown.

N=W−Psinθ ; N < W

Since acceleration is zero,

Pcosθ=f or P = f /cos0

So,

P ›f.

Answer 2

Explanation:

P>f and N<W

hope it helps..