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You (mass 55 kg) are riding your frictionless skateboard (mass 5.0 kg) in a straight line at a speed of 4.7m/s when a friend standing on a balcony above you drops a 2.7kg sack of flour straight down into your arms.

A. What is your new speed, while holding the flour sack?

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Category:- Physics
Reference No.:- M91082502

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