K-PM-1 A cart is rolling on a horizontal table when a ball is launched from the cart, vertically as seen with respect to the cart. Where does the ball land with respect to the cart?

1. In front of the cart.
2. Behind the cart.
3. On the cart.
 

K-PM-2 Ball A is dropped at rest from a height h above the ground. At the same instant ball B is launched horizontally from the same height. Which ball hits the floor first?

1. A
2. B
3. Both hit at the same time
 

K-PM-3 A baseball is thrown from point S in right field to home plate. The dashed line in the diagram shows the path of the ball. Use a coordinate system with up as the positive vertical direction and to the right as the positive horizontal direction, with the origin at the point the ball was thrown from (point S)

(a) The horizontal acceleration versus time and the vertical acceleration versus time.
(b) The horizontal velocity versus time and the vertical velocity versus time.

K-PM-4 Cannonballs of different masses are shot from cannons at various angles above the horizontal. The velocity of each cannonball as it leaves the cannon is given, along with the horizontal component of that velocity, which is the same.

Rank the horizontal distance travelled
by the cannonballs. Explain your reasoning.

K-PM-5 A baseball is hit with an initial speed of 36.0 m/s at an angle of 66.0º above the horizontal. At the same moment a fielder 68.0 m away begins running away from where the ball was hit in the line of the baseball’s flight, trying to catch it. How fast must the outfielder run to catch the ball at the same height it was hit? How does this change if the runner is to catch the ball 1 m above where it was hit?