Physics 214

In Class Quiz 1, 3/15/01

 

Name__________________________

 

 

 

1.)(3pts) A 2 kg hammer is set on a roof for which = .22. The roof has a pitch of

40 degrees. Will the hammer stay on the roof or slide off?

 

 

 

 

 

 

 

2.)(3pts) A 20 kg particle is subject to two forces that produce a resultant

acceleration of a = 2i 3j m/s2. If one of the forces is F = -2i + 4j N, find the

other force.

 

 

 

 

 

 

 

 

 

3.)(4pts) Two blocks with masses m1 = 5kg, and m2 = 8 kg are connected

by a massless rope, and slide on a frictionless surface as in the figure. Find

the acceleration of the system and the tension in the rope.

 

 


m1

m2

 

 

400