FJ

4 ) A 1800-kg car is traveling at 20 m/s when it crashes into the rear end of a 1550-kg car traveling at 14 m/s in the same direction on ice. The two cars become stuck together and slide on the ice. How fast in m/s do th...

A tennis player hits a ball and gives it a velocity of 9 m/s at 25o. What is the vertical velocity of the tennis ball that she hit? Round to the nearest tenth.