English, asked by pratheepadevi6, 2 months ago

glimpse of the past paragraph its 200 words​

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Answered by ItzSmartavinay
2

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.Sep 10, 2018

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