A 25-kg boy jumps off of a 100-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 boy? Ignore the effects of water resistance.
A)7.5 m/s
B)6.1 m/s
C)19.6 m/s
D)2.5 m/s
E)1.2 m/s

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The Answer of A 25-kg boy jumps off of a 100-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 boy? Ignore the effects of water resistance.
A)7.5 m/s
B)6.1 m/s
C)19.6 m/s
D)2.5 m/s
E)1.2 m/s

A 25-Kg Boy Jumps Off of a 100-Kg Raft