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A crowbar of length 120 cm has its fulcrum situated at a distance of 20 cm from the load. Calculate the mechanical

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A crowbar of length 120 cm has its fulcrum situated at a distance of 20 cm from the load. Calculate the mechanical advantage of the crowbar.

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Total length of crowbar = 120 cm

Load arm = 20 cm

Effort arm = 120 − 20 = 100 cm

Mechanical advantage M.A =  effort arm/Load arm

M.A = 100/20=5

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