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A hydrolic automobile lift is designed …

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A hydrolic automobile lift is designed to lift cars with a maximum mass of 3000 kg. The area of cross-section of the piston carrying the load is 425cm^3. What maximum pressure would the smaller piston have to bear?

Posted by Shivshant Upadhyay 7 years, 1 month ago

CBSE > Class 11 > Physics

1 answers

Md Mohid 7 years ago

The maximum force which the bigger piston bear, F = 3000kg x 9.8N Area of piston, A= 425 cm^2 = 425 x 10^-4 m^2 Therefore, Maximum pressure on the bigger piston, P = F/A = 3000 x 9.8 / 425 x 10^-4 = 6.92 x 10^5 Pa Since the liquid transmits pressure equally, therefore the maximum pressure the smaller piston can bear is 6.92 x 10^5 Pa.

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