Calculate mechanical advantage and velocity ratio of the given ideal block and tackel system.

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Solution

The correct option is B B

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Similar questions

A block and tackle system has 5 pulleys. If an effort of 1000 N is needed in the downward direction to raise a load of 4500 N, calculate :

(a) the mechanical advantage ,

(b) the velocity ratio, and

4

Find the mechanical advantage of a block and tackle system consisting $n$ number of pulleys.

Give reasons for the following :

(a) In a single fixed pulley, the velocity ratio is always more than the mechanical advantage.

(b) The efficiency of a movable pulley is always less than $100 %$ .

(d) The lower block of a block and tackle pulley system must be of negligible weight.

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