Momentum and Collisions Review

Total momentum of a system is the same before and after a collision

• True

• False

What is needed in order to calculate momentum (p)?

• Displacement (m)

• Mass (kg)

• Acceleration (m/s^2)

• Velocity (m/s)

Conservation of momentum states that the total momentum of a system before collision must be

• less than the total momentum after collision

• greater than the total momentum after collision

• equal to the total momentum after collision

• different than the total momentum depending on the collision

Two cars of identical masses are traveling down the road. Car A has a velocity of 4 m/s while Car B has a velocity of 12 m/s. Compared to Car A, Car B's momentum is -

• 3x smaller

• 4x larger

• 12x larger

• 3x larger

Two ice skaters are holding on to each other on the ice. They push against each other so that they are now moving in opposite directions. What formula would you use to solve for momentum?

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A 5kg object is thrown into a stationary rolling bin with a velocity of 3.1 m/s. If the rolling bin has a mass of 26 kg, what is its final velocity?

What formula would you use to solve this equation?

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Two carts with equal mass of 1 kg are traveling towards each other. Cart A had an initial velocity of 13 m/s while Cart B had an initial velocity of -8 m/s. After they bounce off each other, Cart B's final velocity is 10 m/s, what is Cart A's final velocity?

What formula would you use to solve this?

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