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

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Solution

Here,
Crowbar is a first class lever.
L = 120 cm
d₁ = (120 – 20) = 100 cm
d₂ = 20 cm
MA = d₁/d₂
= 100/20 = 5
MA = 5

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

Here,Crowbar is a first class lever.L = 120 cmd1 = (120 – 20) = 100 cmd2 = 20 cmMA = d1/d2 = 100/20 = 5MA = 5

Here,
Crowbar is a first class lever.
L = 120 cm
d₁ = (120 – 20) = 100 cm
d₂ = 20 cm
MA = d₁/d₂
= 100/20 = 5
MA = 5