Why single movable pulley has the efficiency full 100% why single fixed pulley does nt have?
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2
1 due to friction in the movable parts of the pulley
2 due to weight of the pulley.
Anonymous:
Thx..
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1
Because,by force it accelarate up and down which gaves 100% but in case of fixed pully accln. cant done,I think so...i hope it is right
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