Name: _________________________

Momentum Problems

Momentum = mass X velocityp=mv

1. A steel ball whose mass is 2kg is rolling at a rate of 2.8 m/s. What is the momentum?

Work:

Answer (include unit)___________

2. A marble is rolling at a velocity of 1.5 m/s with a momentum of .1 kg*m/s, what is it’s mass?

Work:

Answer (include unit)___________3. On April 15, 1912 the luxary cruise liner the Titanic sank after

running into an iceberg. What was the cruise liner’s speed if it had a mass of 4.23 X 108 and a momentum of 4.9 X 109 kg* m/s?

Work:

Answer (include unit)___________4. A 59 kg physics student is riding her 220 kg Harley at 12 m/s. What

is their momentum? ( hint add the masses together first!)Work:

Answer (include unit)___________5. If the momentum of the NASA space shuttle as it leaves the

atmosphere is 3.7 X 108 kg*m/s and it’s mass is 75,000 kg, what is its speed?

Work:

Answer (include unit)___________

6. What is the momentum of an 8kg bowling ball rolling at 2 m/s?Work:

Answer (include unit)___________Impulse = Force X change in timeOr I =Ft7. What impulse occurs when an average force of 10N is exerted on a

cart for 2.5 seconds?Work:

Answer (include unit)___________8. Impulse is equal to the change in momentum ( or mass X

velocity), so if the cart in #7 has a mass of 5 kg, what is it’s velocity after the collision? mv = impulse you found in #7.

Work:

Answer (include unit)___________9. If an impulse acting on a tennis ball is 20 N/s, and it occurred

over .5 seconds, what is the force? ( I=Ft)Work:

Answer (include unit)___________10. If a tennis ball with a mass of .5kg is accelerated to a

rate of 15 m/s/s by being hit by a racket ( contact time for the ball and racket was 1 second). What is the impulse? I = Ft, remember that F=ma, so I = mass X accel. X time.

Work:

Answer (include unit)___________