You will land back on the same spot on the plane from which you jumped.

1. 1) • You will land back on the same spot from which you jumped. • You will land back on the same spot on the plane from which you jumped. • c. In both cases no unbalanced horizontal forces were acting on you; therefore, you maintain your current horizontal motion (at rest in a. and moving at 300 mi/hr in b.) while accelerating vertically due to the force of gravity.

2. 2) When the Ping-Pong ball and the bowling ball collide they exert equal forces on each other in opposite directions (3rd Law). The Ping-Pong ball undergoes a much larger acceleration than bowling ball does because its mass is so much smaller. (2nd Law)

3. 3) Assuming you are trying to accelerate both objects equally, the tank has a greater mass and will require a larger retarding force in order to experience that acceleration. (2nd Law)

4. 4) The blades are angled; as they move through the air they push air particles in one direction. Each air particle applies an equal and oppositely directed reaction force to the blade, causing it to move in the opposite direction. (3rd Law)

5. 5) The dog is using Newton’s 1st Law to remove the water from his fur. The dog shifts his body in one direction, causing his fur and the water in it to begin moving. Then he quickly stops his fur by applying an unbalanced force to it. No such force acts on the water drops so they continue moving in the original direction, leaving his fur. Repeating this several times removes most of the water.

6. 6) The water comes up through the middle of the sprinkler and travels out each arm. The bend in the arm forces the water in one direction, and each water particle applies an equal reaction force to the sprinkler arm in the opposite direction. (3rd Law)