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Mechanical Advantage in Lever

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Question

With the help of a car jack, Alex's father is able to lift up a car of weight 12000 N with a force of 1200 N. Calculate the mechanical advantage of the car jack. (Take g = 10 $m s^{- 2}$ )

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Solution

Given load of the car jack = 12000 N
effort applied on the car jack = 1200 N

Mechanical advantage $= \frac{l o a d}{e f f o r t} = \frac{12000}{1200} = 10$

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