1 Answer

Manukall · Answer 1 · 2018-07-29T05:25:01+0000

As the ideal mechanical advantage (IMA) of a pulley is directly dependent upon the number of support strings, N.
i.e., IMA = N
Then, N = 4 = IMA [ 'cause there are four dependent strings ]

So, option D would be your correct answer.

Hope this helps!

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