Ch. 4 Quiz Review Problems
1. A 35kg crate is pulled across a level floor by a 170N force applied at an angle of 25º above horizontal. If
μk = 0.50, what is the acceleration of the crate?
2. An 5.0 kg object slides at a constant speed of 2.0m/s down an incline of 40.º. Find the coefficient of
kinetic friction, μk.
3.
4. Two masses are hung from the ceiling of an elevator. If mass B is 5.00kg, mass D is 10.0kg, and the
tension in rope C is 8.11N, find the acceleration of mass B and the tension in rope A
.
5.. A 2.0kg object is attached by a string to a 1.0kg object and both are pulled across a frictionless horizontal
surface by a horizontal force of 5.0N applied to the 1.0kg object.
a) Find the acceleration of the system.
b) Find the tension in the string between the objects.