kinematics ap 1

A ball is thrown upward with an initial velocity of 20 m/s. How long will the ball take to reach its maximum height?

• 19.6 s
• 9.8 s
• 6.3 s
• 2.04 s

An airplane lands on a runway with a velocity of 150 m/s. How far will it travel until it stops if its rate of deceleration is constant at -3 m/s²?

• 525 m
• 3750 m
• 6235 m
• 9813 m

A ball is thrown downward from the top of a roof with a speed of 25 m/s. After 2 s, its velocity will be 

• 19.6 m/s
• -5.4 m/s
• -44.6 m/s
• 44.6 m/s

A rocket is propelled upward with an acceleration of 25 m/s² for 5 s. After that time, the engine is shut off, and the rocket continues to move upward. The  maximum height, in meters, that the rocket will reach is

• 900
• 1000
• 1100
• 1200

A projectile is launched at an angle of 45^o with a velocity of 250 m/s. If air resistance is neglected, the magnitude of the horizontal velocity of the projectile at the time it reaches maximum altitude is equal to 

• 0 m/s
• 175 m/s
• 200 m/s
• 250 m/s

In section 5 of the velocity - time graph, the object is

• speeding up moving in the positive direction
• slowing down moving in the positive direction
• speeding up moving in the negative direction
• slowing down moving in the negative direction

A baseball is thrown straight upward. What is the ball's acceleration at its highest point?

• 1/2 g, downward
• g, downward
• 1/2 g , upward
• g, upward

A rock is dropped off a cliff and strikes the ground with an impact velocity of 30 m/s. How high was the cliff?

• 20m
• 30m
• 45m
• 60m

The SI unit for length or distance is

• foot (ft)
• inch (in)
• mile (mi)
• meter (m)

Motion sensors recorded the following data about a runner during a cross-country race. During which segment of the race did the runner have the greatest speed?

• W
• X
• Y
• Z