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A 25-Kg Boy Jumps Off of a 130-Kg Raft

Question 22

Multiple Choice

A 25-kg boy jumps off of a 130-kg raft.If the boy jumps off at a speed of 4.90 m/s relative to the lake,what is the speed of the raft relative to the lake? Ignore the effects of water resistance.


A) 0.94 m/s
B) 1.1 m/s
C) 1.6 m/s
D) 2.5 m/s
E) 0.50 m/s

Correct Answer:

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