The property of matter that resists a change in an object's motion is called ______.

According to Newton's second law, the acceleration of an object is directly proportional to the _________.

The force that is ultimately responsible for an object's acceleration is referred to as the _________ force.

A 2500 kg elevator is moving vertically upward withconstant speed of 2.0 m/s. The value of the net force acting on the elevator is _____. (spell the number).

According to Newton's second law, the acceleration of an object is inversely proportional to the _________.