A plastic block of mass m is floating on the water's surface. Some of the block is under the water and some is above. The block is exactly 4cm thick and 2.8cm beneath the surface of the water. If the density of the water is given as pw = 1000kg/m^3, calculate the density of the plastic block.

A plastic block of mass m is floating on the water's surface. Some of the block is under the water and some is above. The block is exactly 4cm thick and 2.8cm beneath the surface of the water. If the density of the water is given as pw = 1000kg/m^3, calculate the density of the plastic block.

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 43PE: In an immersion measurement of a woman's density, she is found to have a mass of 62.0 kg in air and...

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Question

A plastic block of mass m is floating on the water's surface. Some of the block is under the water and some is above. The block is exactly 4cm thick and 2.8cm beneath the surface of the water.

If the density of the water is given as pw = 1000kg/m^3, calculate the density of the plastic block.

2, formulae and units for this seci
A plastic block of mass, m is floating on the water's surface. Some of
the block is under the water and some is above (see diagram). The block
is exactly 4 cm thick with 2.8 cm beneath the surface of the water.
a. Label on the diagram the forces acting on the block.
b. Using Newton's 2d Law of Motion write an equation for these forces.
1 Fb
4 cm
2.8 cm
Fg mg
Fg
Fb =mug = PoVog
%3D
If the density of the water is given as P = 1000kg/m calculate the density of the plastic block.
C.
%3D

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