Question

A man has to lift a sack of sugar weighting 240 N. If he uses a single fixed pulley, how much effort will he need to apply? What will be the mechanical advantage? (Plz answer in process. And if you don't know the don't answer, Plz show full Process).​

Answer 1

Answer:

Pulley does not give any mechanical advantage . it merely changes the direction of force. so you will need slightly more than 240 N counter gravitational pull to lift the weight .

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Answer 2

Answer:

Pulley does not give any mechanical advantage . it merely changes the direction of force. so you will need slightly more than 240 N counter gravitational pull to lift the weight .12-Feb-2018