A ball is dropped from a height of 20m. Assuming that air resistance is negligible: i) How fast will it be travelling when it hits the ground? ii) How long will it take to hit the ground?

The free body diagram shows a box being pulled to the left up a 25-degree incline. the magnitude of the normal force is

Use the information presented in the graph to answer the questions. which segments show acceleration? which segment indicates that the object is slowing down? what is the velocity of segment b? what is the acceleration of segment b?

Arowboat passenger uses an oar to push the boat off the dock by exerting a force of 40n for 3.0s. what impulse acts on the boat.