Momentum and Impulse AP

A golfer strikes a golf ball of mass 0.05 kg, and the time of impact is 1 ms (millisecond). If the ball acquires a velocity of 70 m/s, calculate the average force exerted on the ball.

• 3500 N

• 3.5 N

• 1400 N

• 70000 N

Tags

NGSS.HS-PS2-1

A marble of mass 0.1 kg falls off a 1.2 m high bed. What is the impulse on the marble as it hits the ground?

• 0.49 kg m/s

• 4.9 kg m/s

• 0 kg m/s

Tags

NGSS.HS-PS2-1

A runner has a momentum of 720 kg m/s and is traveling at a velocity of 5 m/s. What is his mass?

• 14.4 kg
• 1400 kg
• 144 kg
• 360 kg

Tags

NGSS.HS-PS2-1

An object with a mass of 2000 kg at rest has what momentum?

• 2000 kg m/sec
• 0 kg m/sec
• 2000 kg
• 2000 m/sec

Tags

NGSS.HS-PS2-2

A boy kicks a football with a force of 20 N, the time the force acts for is 0.3 s. Calculate the impulse on the ball.

• 1 N⋅s

• 6 N⋅s

• 33.3 N⋅s

• 66.6 N⋅s

How can a tennis ball and a bowling ball have the same momentum?

• have the same speed
• have different speeds
• one is moving backwards
• they can't

Tags

NGSS.HS-PS2-2

The purpose of crumble zones on a car is to

• decrease time of impact.
• increase force of impact.
• increase the time of impact.
• decrease the impulse during impact.

Tags

NGSS.HS-PS2-3

Tubby and his twin brother Chubby have a combined mass of 200 kg and are zooming along in a 100 kg amusement park bumper car at 10 m/s. They bump Melinda's car, which is sitting still. Melinda has a mass of 25 kg. After the elastic collison, the twins continue ahead with a speed of 4.12 m/s. how fast is Melinda's car bumped across the floor?

• 15.1 m/s

• 14.1 m/s

• 2.5 m/s

• 12.5 m/s

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-2