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Physics, 30.09.2019 10:20 arunamvr

Apulley system has an efficiency of 74.2%. if you perform 200 j of work, how much useful work does the pulley perform?
a.200 j
b.148 j
c.52 j
d.113 j

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Apulley system has an efficiency of 74.2%. if you perform 200 j of work, how much useful work does t...
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