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ICSE Class 10 Physics 2017 Solved Paper

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A pulley system with VR=4 is used to lift a load of 175‌kgf through a vertical height of 15m. The effort required is 50‌kgf in the downward direction. (g=10Nkg−1)
Calculate:
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Question : 30
Total: 65
M.A. of the pulley system.
Solution:  
‌ M.A. ‌=‌
‌ Load ‌
‌ Effort ‌
=‌
175‌kgf
50‌kgf
=3.5
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