Problem *3.112[Difficulty: 2]Given:Steel balls resting in floating plastic shell in a bucket of waterFind:What happens to water level when balls are dropped in waterSolution:Basic equationFBρVdisp⋅g⋅=W=for a floating body weight WWhen the balls are in the plastic shell, the shell and balls displace a volume of water equal to their own weight - a large volumebecause the balls are dense. When the balls are removed from the shell and dropped in the water, the shell now displaces only asmall volume of water, and the balls sink, displacing only their own volume. Hence the difference in displaced water before andafter moving the balls is the difference between the volume of water that is equal to the weight of the balls, and the volume of the
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