Answer to Question #160297 in Physics for Aroyebi Randolph

Question

A block weight 15N rest on a flat surface and a horizontal force of 3N is exerted on it determine the frictional force on the block

Answer 1

Let's assume that the block moves under constant velocity, than applying Newton's Second Law of Motion, we get:

$$F_{h}-F_{fr}=0,$$ $$F_{fr}=F_{h}=3\ N.$$