Question

In class 2 Lever ,the load arm is 80 cm long and the distance between the load and the effort is 120 cm find the mechanical advantage

Answer 1

Explanation:

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Answer 2

The mechanical advantage is 1.5

Explanation:

Given that,

Load arm= 80 cm

Effort arm= 120 cm

Suppose the load is 60 N.

We need to calculate the effort

Using formula of effort

$\dfrac{effort\ arm}{load\ arm}=\dfrac{load}{effort}$

Put the value into the formula

$\dfrac{120}{80}=\dfrac{60}{effort}$

$effort=\dfrac{60\times80}{120}$

$effort=40$

We need to calculate the mechanical advantage

Using formula of mechanical advantage

$M.A=\dfrac{Load}{effort}$

Put the value into the formula

$M.A=\dfrac{60}{40}$

$M.A=1.5$

Hence, The mechanical advantage is 1.5

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Topic : Mechanical advantage

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