Solve the problem.
-What is the minimum force required to prevent a ball weighing 17.2 lb from rolling down a ramp which is inclined 24.8° with the horizontal? Round to the nearest tenth.
A) 7.8 lb
B) 3.6 lb
C) 7.2 lb
D) 15.6 lb

Question

Quizplus · Accepted Answer

The minimum force required to prevent the ball from rolling down is the component of the weight parallel to the ramp. This is calculated as 17.2 lb * sin(24.8°), which is approximately 7.2 lb.

Solve the Problem. -What Is the Minimum Force Required to Prevent a Ball