Question

In a car lift, a car of 1200kg is resting on a platform of surface area 10 m^2. what pressure should the platform on the car sodas to lift it

Answer 1

$\huge\textbf{ANSWER}$
$<b>$
Force exerted by the car=mg   [g=acceleration due to gravity]

  =1200×9.8

  =11760 N

As we know that

Pressure=Force/Area

               = 11760/10

               =1176 N/m²

No, since the car is already exerting 1176 N/m² of pressure, so the platform should exert pressure greater than 1176 N/m² to lift the car.

Pressure required to apply = 1176 N/m²

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