(3) Car A with a mass of 1250 kg is driving south at 25 m/s when it is struck by Car B having a mass of 1080 kg travelling west at 38 m/s. Determine the velocity and direction of the combined wreckage immediately after the
collision as well as the coefficient of friction needed to stop the wreckage after 89 m.

The astronauts on the space shuttle flights experienced an acceleration of 29 m/s2 (about 3 "g's") during lift-off. what upward force must the astronaut's seat apply to the astronaut in order to cause this acceleration? assume the astronaut's mass is 70 kg, and compute this force when the acceleration is near the earth's surface so their weight equals latex: mg m g .