Jake Kubehl

When a rifle fires at a distant target, where should the barrel be pointing? 1. above the target 2. to the left of the target 3. to the right of the target 4. directly at the target 5. diagonally from the target 6. below the target

Projectile motion is caused by the 1. downward force of gravity and horizontal motion of velocity. 2. downward force of gravity. 3. horizontal motion of velocity. 4. vertical motion of velocity

A)You drop a stone from a position of rest. How far will it fall vertically in the first 3 s? The acceleration of gravity is 9.8 m/s Answer in units of m B)If you instead toss it horizontally at 1.8 m/s, how far will it fall vertically in the first 3 s?

A projectile is fired straight upward at 143 m/s. How fast is it moving at the instant it reaches the top of its trajectory? Answer in units of m/s.

A dart is thrown horizontally toward the center point X of the target at 20 m/s. After 0.1 s it hits a point Y which lies exactly below point X. The distance XY is: 1. 1 m 2. 0.1 m 3. 0.5 m 4. 2 m 5. 0.05 m

While running at 13 mph directly toward Patrick, Lisa passes a basketball to him. Patrick is stationary when he receives the ball, which is moving at a speed of 49 mph. How fast did Lisa throw the ball? Answer in units of mph.

A passenger at the rear of a train traveling at 16 m/s relative to Earth throws a baseball with a speed of 15 m/s in the direction opposite the motion of the train. What is the velocity of the baseball relative to Earth as it leaves the thrower’s hand? An...