Impulse Change in Momentum Theorem

Impulse-Momentum Theorem

Learning Target

​To use the impulse-momentum change equation

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• to analyze a collision in order to determine an unknown quantity in a collision problem.

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• ​ as a guide to thinking about how a change in one quantity affects another quantity.

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Multiple Select

How could you decrease the force on an object in a collision?

(Choose two options.)

• increase collision time

• decrease collision time

• increase change in momentum

• decrease change in momentum

Multiple Choice

Most modern vehicles have padded dashboards. This reduces collision injuries by...

• reducing the driver's change in momentum

• increasing the driver's change in momentum

• increasing the force of impact

• increasing the time of impact

Multiple Choice

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 

• None of these

Multiple Choice

A 17,000 kg car was traveling down the highway. If it took 7.0 seconds to stop with a force of -24,000 N, what was the initial velocity?

• +9.9 m/s

• +170,000 m/s

• +1.4 m/s

• +0.20 m/s