A force that
causes mass movement is called weight. The force of gravity is the force with
which massively large objects such as the earth attracts another object towards
itself. All objects of the earth exert a gravity that is directed towards the
center of the earth. Therefore, the force of gravity of the earth is equal to
the weight of the object. Weight is equal to mass times the acceleration due to
gravity. The mass of an object has a gravitational acceleration of 9.8 m/s2. The answer is letter C.
