Adog runs out the door and through the neighborhood. it starts at point a
and ends up at point f. what distance has it run at f?
a. 2 km
o b. 11 km
o c. 8 km
o d. 5 km

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.