Question

frictional force of 4 kg block is​

Answer 1

Answer:

Frictional Force = 39.2μ

Explanation:

Either your question is incomplete or u are from 11 class.

If you are from class 11 the your answer is 39.2μ

As,

Frictional force= coef of friction(μ)*Normal force

and Normal force = mg

so Frictional force = μmg