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Question
Solve the following numerical problem.
What effort will be required to lift a load of 500 N by a single movable pulley? [Hint: Mechanical advantage of a single movable pulley is two].
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Solution
Load = 500 N
Mechanical advantage (M A) = 2
of a single movable pulley
Effort =?
We know that,
MA = `"Load "/"Effort"`
⇒ Effort = `500/2` N = 250 N
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