Phy 213 Quiz 5 Prelim 1 Force 1 Oct. 23, 2006

1. A 20 kg mass is pulled along on a friction free horizontal plane by a horizontal force of 50 N. What is the acceleration of the mass?

2. An object slides down a friction free plane with an acceleration of 4 m/s². What angle does the plane make with the horizontal ?

3. Two objects are attached to a massless, friction free pully as indicated in the figure. What is the acceleration of the system ?

4. The surfaces are friction free. The 3 kg block acclerates 5 m/s² to the right. Find the magnitude of F.

5. The pulley is massless and friction free, the surface is friction free. Find the acceleration of the system .