Question


A body of mass 50kg is dragged along a horizontal rough surface at a uniform speed of 3m/s. If the dragging from is 15N, find the force resisting the motion of the body
Bot
The force resisting the motion of the body is 75N. This is calculated by using the equation F = ma, where F is the force, m is the mass, and a is the acceleration. In this case, the acceleration is 0, since the body is moving at a uniform speed. Therefore, F = ma = (50kg)(0) = 0. Since the force of the dragging force is 15N, the force resisting the motion of the body is 15N + 0 = 75N.