A rock with a density 2.8 times the density of water is dropped into a lake (SG = 0.90). A person dives in and tries to get it out. Which the relationship between the mass of person and the mass of rock so that the person can lift it from the bottom of the lake?

A rock with a density 2.8 times the density of water is dropped into a lake (SG = 0.90). A person dives in and tries to get it out. Which the relationship between the mass of person and the mass of rock so that the person can lift it from the bottom of the lake?

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter11: Fluid Statics

Section: Chapter Questions

Problem 32CQ: The density of oil is less than that of water, yet a loaded oil tanker sits lower in the water than...

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Question

A rock with a density 2.8 times the density
of water is dropped into a lake (SG = 0.90).
A person dives in and tries to get it out.
Which the relationship between the mass
of person and the mass of rock so that the
person can lift it from the bottom of the
lake?

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