Question

If a 15.0N object is being pulled at a constant velocity by a 10.0N force at 15.0° above

horizontal. What is the CoF of the object and the surface?

Answer 1

μk = .78

Step-by-step explanation:

Normal force = 15 - 10 sin 15 = 12.4 N

Friction = horizontal force = 10 cos 15 = 9.7 N

( because it is constant velocity)

Coefficient of friction = F / Normal = 9.7 / 12.4 = .78