11. Momentum & Impulse

Intro to Momentum

Multiple Choice
How fast would you have to throw a 150-g rock for it to have the same momentum as a 10-g sniper rifle bullet traveling at 900 m/s?
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Multiple Choice
A250 grubber ball bounces off a wall. As it strikes the wall, it is moving in the negative x-direction at $11 m/s$ ,and as it bounces off, it is moving in the positive x-direction at $10 m/s$ . What is the impulse on the ball from the wall?
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Multiple Choice
What is the momentum of a600 kgcar traveling at $16 m/s$ (about35 mph)?
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Multiple Choice
Three cars approach an intersection: an 800 kg car moves in the positive x-direction at $10 m/s$ , a 1200 kg car moves in the negative x-direction at $5 m/s$ , and a 900 kg car moves in the positive y-direction at $12 m/s$ . What is the total momentum of this system of three cars? Give your answer as a magnitude and an angle counterclockwise from the positive x-axis.
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Textbook Question
Two vehicles are approaching an intersection. One is a 2500-kg pickup traveling at 14.0 m/s from east to west (the -x-direction), and the other is a 1500-kg sedan going from south to north (the +y-direction) at 23.0 m/s. What are the magnitude and direction of the net momentum?
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Textbook Question
Two vehicles are approaching an intersection. One is a 2500-kg pickup traveling at 14.0 m/s from east to west (the -x-direction), and the other is a 1500-kg sedan going from south to north (the +y-direction) at 23.0 m/s. Find the x- and y-components of the net momentum of this system.
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Textbook Question
What is the magnitude of the momentum of a 32-g sparrow flying with a speed of 8.4 m/s?
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