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AP® Physics C: Mechanics

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Velocity of a Boxcar

APPHMC-EKOZUG

A 20,000 kg boxcar is moving at 5.0 m/s when 5000 kg of sand is dumped into the car from directly above.

What is the new velocity of the boxcar?

A

6.67 m/s

B

5.0 m/s

C

4.0 m/s

D

3.67 m/s

E

0.25 m/s