Question

a man draws water from well by fixed pulley.the mass of bucket and water is 7kg.if the force applied by the men is 90N.calculate the MA (g=ms-2)​

Answer 1

From question,we have;

• Mass of bucket and water = 7 kg

Load of bucket and water = 7 × 10 = 70 N

• Force applied by men = 90 N

We know that,

Mechanical advantage = Load / Effort

Ma = 70/90

Ma = 7/9

Ma = 0.77

Therefore, the mechanical advantage is 0.77.

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