Question

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.

Answer 1

Answer:

Mechanical Advantage, MA= effort arm/load arm

As given, Load arm=20cm

Effort arm=120−20=100cm

MA= 100/20=5

Answer 2

$\huge{\mathfrak{\purple{\underline{\underline{Solution:}}}}}$

• Mechanical Advantage = $\frac{effort \: arm}{load \: arm}$

• As given, Load arm = 20cm

• Effort arm= 120−20 = 100cm

• Mechanical Advantage (MA) = $\frac{100}{20}$ = 5 (Ans)

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