Momentum Quiz (Test)

What is the impulse on a 45,000 kg airplane when it changes its velocity from 242 m/s to 258 m/s?

• 16 kg*m/s

• 2,800 kg*m/s

• 440,000 kg*m/s

• 720,000 kg*m/s

At an amusement park, a 50 kg bumper car moving very quickly has a perfectly elastic collision with a 40 kg bumper car moving very slowly. Which of the following statements must be true?

• The momentum of both bumper cars before the collision is equal.

• The momentum of each bumper car after the collision is equal to the momentum it had before the collision.

• the total momentum of the bumper cars before the collision is greater than the total momentum of the bumper cars after the collision.

• The total momentum of the bumper cars before the collision equals the total momentum of the bumper cars after the collision.

Which of the following has the least momentum?

• A .01 kg mass moving at 200 m/s.

• A 1 kg mass moving at 35 m/s.

• A 100 kg mass moving at 3 m/s.

• A 2,000 kg mass moving at 0.1 m/s.

In the pictures below, a lump of clay with a mass of 1.3 kg is traveling horizontally to the right at 3.5 m/s. The clay hits a block with a mass of 5.0 kg that is at rest on a frictionless surface. After colliding, the clay and block stick together and move to the right. What is the velocity of the clay and block after the collsioin?

• .72 m/s

• 1.10 m/s

• 2.69 m/s

• 3.50 m/s

What is the mass of a baseball thrown at 25 m/s resulting in a momentum of 10 kg*m/s?

• 0.4 kg

• 2.5 kg

• 10 kg

• 250 kg