Author: Anonymous

Two spacemen are floating together with zero speed in a gravity-free region of space. The massof spaceman A is 120 kg and that of spaceman B is 90 kg. Spaceman A pushes B away from him with B attaining a final speed of 0.5m/s. The final recoil speed of A is:

A meter stick on a horizontal frictionless table top is pivoted at the 80-cm mark. It is initially at rest. A horizontal force F1 is applied perpendicularly to the end of the stick at 0 cm, as shown. A second horizontal force F2 (not shown) is applied at the 100-cm end of the stick. If the stick does not rotate:

A bicycle wheel rotates uniformly through 2.0 revolutions in 4.0 s.  What is the linear speed of a point 0.10 m from the center of the wheel?

Vector  V is 8.5 units long and points at  600 to the positive x axis.  What are the x and y components of this vector?

  A football field is 120 yd long and 50 yd wide. What is the area of the football field, in m 2, if 1 yd = 91.44 cm?  

A man pulls a sled along a rough horizontal surface by applying a constant force F at an angle θ above the horizontal. In pulling the sled a horizontal distance d, the work done by the man is:

If a car accelerates from rest at 2 meters per second per second, its speed 3 seconds later will be about

The mass of an object:

The velocity of a particle moving along the x axis changes from vi to vf . For which values of vi and vf is the total work done on the particle positive?

A wheel starts from rest and reaches an angular speed of 6.0 rad/s while turning through 2.0 revolutions.  What is the average angular acceleration of the wheel?