A women drawing water from a well draw a FBD to show the forces acting on the bucket when she is pulling the bucket
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A woman draws water from a well using a fixed pulley. The mass of bucket and water together is 6 Kg. The force applied by the woman is 70 N. calculate the mechanical advantage. [Takeg=10ms
2
]
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ANSWER
Mass of the bucker with water, m=6kg
Load of bucket and water, W=6×10=60N
Force applies by women, F=70N
Mechanical advantage = Load / Effort =
F
W
=
70
60
=0.86
Hence, mechanical advantage is 0.86
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