Pandaslearn Pandaslearn

26-02-2014
Physics

Answered

what is it about the movable pulley that causes the difference in force?

Verified Answer :

27-02-2014

There is normally friction across the pulley. If a weight is suspended by a rope, and the rope goes across a pulley, the pulley exerts friction on the rope if there is any movement, giving rise to inaccuracies in calculations.

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