The diagram below shows a fixed pulley used by a boy to lift a load of $400 N$ . The effort applied by the boy on the other end of the rope is $480 N$ . What is the mechanical advantage?

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0.833

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Solution

The correct option is B $0.833$
Given:
Load, $L = 400 N$
and effort $E = 480 N$ .
Mechanical advantage is defined as the ratio of load raised to the effort applied i.e.,

Mechanical advantage $(MA)$ = $\frac{Load (L)}{Effort (E)}$
$⟹$ $MA = \frac{400}{480} = 0.8333$

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The diagram below shows a fixed pulley used by a boy to lift a load of 400 N. The effort applied by the boy on the other end of the rope is 480 N. What is the mechanical advantage?

The correct option is B 0.833Given: Load, L=400 N and effort E=480 N. Mechanical advantage is defined as the ratio of load raised to the effort applied i.e., Mechanical advantage (MA) = Load (L)Effort (E) ⟹ MA=400480=0.8333

The diagram below shows a fixed pulley used by a boy to lift a load of $400 N$ . The effort applied by the boy on the other end of the rope is $480 N$ . What is the mechanical advantage?

The correct option is B $0.833$
Given:
Load, $L = 400 N$
and effort $E = 480 N$ .
Mechanical advantage is defined as the ratio of load raised to the effort applied i.e.,

Mechanical advantage $(MA)$ = $\frac{Load (L)}{Effort (E)}$
$⟹$ $MA = \frac{400}{480} = 0.8333$