Question

A body of mass 80 kg is acted upon by a horizontal pushing

force of 50N when it is on a rough horizontal plane (μ = 0.21).

Then the frictional force acting on the body is​

Answer 1

Explanation:

For moving the body, applied force should be greater or equal to limiting friction tie, N). The limiting friction is

(a) Since, applied force F = 5 N, so body starts to move in forward direction.

(b) Here, applied force is lesser than limiting friction. So, body does not move.

( c) The reason is same as (b)

Answer 2

Answer:

Explanation:

For moving the body, applied force should be greater or equal to limiting friction tie, N). The limiting friction is

(a) Since, applied force F = 5 N, so body starts to move in forward direction.

(b) Here, applied force is lesser than limiting friction. So, body does not move.

(c) The reason is same as (b)