Question

70-kg man jumps off a raft 2 meter squared moored in a freshwater lake. By how much does the raft rise?
m=70kg(1kg/1000m3)
=.07m3

A=2m sq. =4m
H=V/A

h=0.07m3/4m2
=0.018m or 1.8cm
Step by Step did it right
change in buoyant force = density of water * g * additional area of waterplane * distance it sinks

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