Show mathematically why an 80,000-pound (36,000 kg) big rig traveling 2 mph (0.89 m/s) has the SAME MOMENTUM as a 4,000-pound (1,800 kg) sport utility vehicle traveling 40 mph (18 m/s).

Amira pulls a 3 pound wagon 4 feet. how much work has she done?

Ablock having mass m slides down an inclined plane. the force of friction between the block and the inclined plane is f, the block's weight is m g, and the normal force is n. (a) draw a free – body force diagram showing the forces acting on the block. (b) write down all relevant newton’s equations for a given situation.

What is the single most important equation in all of physics?