Question

Give two reasons why the efficiency of a single movable Pulley is not 100%.​

Answer 1

Answer:

The efficiency of a single movable pulley system is not 100% this is because (i)The friction of the pulley bearing is not zero , (ii)The weight of the pulley and string is not zero.

Explanation:

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Answer 2

Answer:

Give two reasons why the efficiency of a single movable Pulley is not 100%.

(i)The friction of the pulley bearing is not zero

(ii)The weight of the pulley and string is not zero

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