Physics, asked by utsavyaduvansi, 1 year ago

in acar lift compressed air exerts a force f1 on a small piston having aradius of 5cm. this pressure is transmitted to second piston of radius 15cm. if the mass of the car to be lifted is1350kg. what is f1?

Answers

Answered by ctmganesan
2

According to Pascal's law, Pressure is transmitted equally and undiminished through out the fluid.

P1=P2

F1/A1=F2/A2

F1= (A1/A2 ) F2

=[π(5 x10⁻²m)²/π(15x10⁻²m)² ](1350Nx9.8m/s2)

=1470N

=1.5 x 10³ N

The air pressure that will produce this force

P=F1/A1

=1.5x10³N/π(5x10⁻²)² m

=1.9 x 10⁵ Pa

This is almost the double of atmospheric pressure.


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