WorksheetsAP Physics 1 2D Motion Review
Total questions: 10
Worksheet time: 8mins
Shohei Ohtani throws a baseball that travels a parabolic path as shown. At which of the following points is the speed of the baseball a minimum?
A
B
C
D
At t = 0 a paintball is shot out of a paintball gun horizontally off a 1000 m tall cliff. At the same time, a paintball is released from rest (dropped from the same height). Ignoring air resistance, which paintball strikes the ground with a higher speed?
The paintball shot from the gun.
The paintball released from rest.
Both paintballs hit the ground with same speed.
The answer depends on the initial velocity of the paintball fired from the paintball gun.
A machine launches a tennis ball at an angle of 25o above the horizontal. The ball returns to ground level. Which changes would necessarily decrease the time the ball is in the air?
Decrease the launch angle and increase the ball’s initial speed.
Increase the launch angle and decrease the ball’s initial speed.
Increase the launch angle and keep the ball’s initial speed the same.
Decrease the launch angle and keep the ball’s initial speed the same.
A ball is kicked from the ground an initial speed v at an angle Ɵ above the horizontal. Which of the following best describes the magnitudes of the velocity and acceleration of the ball when it reaches the highest point of its trajectory?
Velocity: 0 Acceleration: g
Velocity: vcosƟ Acceleration: g
Velocity: v Acceleration: 0
Velocity: 0 Acceleration: 0
An object is at rest. Three forces are exerted are exerted on the object. One force is directed 10 N due north, and another is 10 N directed due west. Which of the following forces, when added to the other two, would make the total force be equal to zero?
102 N, directed northwest
102 N, directed southeast
103 N, directed northwest
103 N, directed southeast
A projectile is launched with speed v at angle of 30o above the horizontal. It travels a horizontal distance D before hitting the ground Suppose the projectile had instead been launched at the same speed, v, but an angle of 60o above the horizontal. What would the new horizontal distance traveled by the projectile be?
D/2
D/4
D
2D
A football is aimed at a target on the wall a distance L away from the throwing position, from which the football is launched horizontally. Because of gravity, the bullet strikes the wall a distance y below the mark as suggested in the figure. If the distance L was the same but the football had twice the initial velocity, how would y be affected?
y will double.
y will be half as large.
y will be one fourth as large.
y will be four times larger.
A machine launches a tennis ball at an angle of 25o above the horizontal. The ball returns to ground level. Which changes must produce an increase in flight time?
Decrease the launch angle and increase the ball’s initial speed.
Increase the launch angle and keep the ball’s initial speed the same.
Increase the launch angle and decrease the ball’s initial speed.
Keep the launch angle the same and decrease the ball’s initial speed
Max 1 is standing on a cart holding a small stone, while Max 2 is standing at rest on the ground, as shown. The cart is moving at a constant speed in the +x direction. Max 1 drops the stone precisely when passing Max 2. Which of the following best represents the path of the falling stone relative to Max 1 and the path of the falling stone relative to Max 2?
A projectile is launched with speed v straight up into the air. It reaches a maximum height of Suppose the projectile had instead been launched at the same speed, v, but an angle of 45 degrees above the horizontal. What would the new maximum height reached be by the projectile in this case?
4H
2H
22H
2H
