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Mechanical Advantage

An effort of ...

Question

An effort of $20 k g f$ is applied on a machine through a distance of $80 c m$ , when a load of $30 k g f$ moves through a distance of $1 m$ . Calculate (a) Velocity ratio (b) mechanical advantage of the machine.

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Solution

given effort distance = $80 c m$ load distance = $1 m = 100 c m$
$V R = \frac{e f f o r t d i s t a n c e}{l o a d d i s t a n c e}$

$V R = \frac{80}{100 c m}$

$V R = 0.8$

its, $M A = \frac{l o a d}{e f f o r t}$

$M A = \frac{30 k g f}{20 k g f}$

$M A = 1.5$

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