A block of mass 1.9 kg rests on a circular platform of radius 3 cm, supported by

Question

A block of mass 1.9 kg rests on a circular platform of radius 3 cm, supported by a pressurized gas contained in a cylinder of radius 3 cm.

a) What force does the block exert on the platform?

N

b) What pressure then does the gas exert on the platform? (consider the platform itself to be rigid and massless)

N/m2

c) If the platform's original height is 10 cm, and the gas temperature is doubled, what is the platform's new height? (assuming the cylinder is tall enough to suppport this height)

cm

d) What is the work done by the expanding gas on the platform?

J

Explanation / Answer

18.62 N

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