In a car lift compressed air exerts a force F1 on a small piston having a radius 5cm. This pressure is transmitted to a second piston of radius 15cm. If the mass of the car to be lifted is 1350kg. What is F1?
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Answer:
According to pascal law
Explanation:
P1=P2
f1/F2=f2/A2
F1=(A1/A2)F2
=[pi(5×10‐²m)²/pi(15×10‐²m)²](1350N×9.8 m/s²)
=1470N
=1.5×10³N
the air pressure that will produce this force
P=f1/A1
=1.5×10³N/pi(5×10‐²)²m
=1.9×10⁵pa
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