The area under the curve on a Force versus time (F versus t) graph represents

A tennis ball strikes a racket, moving at . After striking the racket, it bounces back at a speed of . What is the change in momentum?

A man with a mass of m is painting a house. He stands on a tall ladder of height h. He leans over and falls straight down off the ladder. If he is in the air for s seconds, what will be his momentum right before he hits the ground?

If an egg is dropped on concrete, it usually breaks. If an egg is dropped on grass, it may not break. What conclusion explains this result?

A crate slides along a floor with a starting velocity of . If the force due to friction is , how long will it take for the box to come to rest?

A crate slides along the floor for before stopping. If it was initially moving with a velocity of , what is the force of friction?