.
What is the average velocity of the object between 14 and
22 seconds?
OA -0.88 m/s
OB -1.5 m/s
OC -1.1 m/s
D -1.0 m/s

A14 kg rock starting from rest free falls through a distance of 5.0 m with no air resistance. find the momentum change of the rock caused by its fall and the resulting change in the magnitude of earths velocity. earth mass is 6.0 * 10^24 kg. show your work assuming the rock earth system is closed.