If a pulley is weightless and frictionless- is its mechanical advantagegreater thanequal to -160-less than its velocity ratiomore than its velocity ratio

The correct option is B equal to #160;It the pulley in weightless and #160;frictionless, the tension at Loud as #160;well as effort side is same them #1 ...

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Standard VIII

Physics

The Simple Pulley

If a pulley i...

Question

If a pulley is weightless and frictionless, is its mechanical advantage

greater than

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equal to

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less than its velocity ratio

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more than its velocity ratio

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Solution

The correct option is B equal to
It the pulley in weightless and
frictionless, the tension at Loud as
well as effort side is same them
the mechanical advantage $(\frac{E f f o r t}{L o a d})$ is
1. Also the distance moved
by the wire wound around the
pulley at both sides are equal
So, velocity ratio $(\frac{d i s t a n c e m o v e d b y E f f o r t}{d i s t a n c e m o v e d b y L o a d})$
is also 1.
option $- B$ is correct

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