Problem 4.29 Part A What is the momentum of a 0.14-kg baseball pitched at 48 m/s

Question

Problem 4.29

Part A

What is the momentum of a 0.14-kg baseball pitched at 48 m/s .

Express your answer with the appropriate units.

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Correct

Significant Figures Feedback: Your answer 6.72kgm/s was either rounded differently or used a different number of significant figures than required for this part.

Part B

What is the momentum of a 0.012-kg bullet fired at 460 m/s ?

Express your answer with the appropriate units.

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Correct

Significant Figures Feedback: Your answer 5.52kgm/s was either rounded differently or used a different number of significant figures than required for this part.

Part C

Which one has greater momentum?

Which one has greater momentum?

Explanation / Answer

Pbaseball=mbaseball*vbaseball =0.14*48 = 6.72 kg*m/s

Pbullet=mbullet*vbullet =0.012*460 = 5.52 kg*m/s

Pbaseball > Pbullet

Baseball has greater momentum

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