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OLEGan [10]
3 years ago
12

an input force of 20 newtons is applied to a lever at a distance of 2 meters from the fulcrum and object 0.5 M away from the ful

crum and on the other side is lifted by the 20-N force what is the output force?

Physics
1 answer:
Dominik [7]3 years ago
5 0
Refer to the diagram shown below.

The input force of 20 N should use the effect of the lever to lift the weight W on the other side of the fulcrum. Therefore the output force is equal to the weight lifted.

Moment balance about the fulcrum yields
W*0.5 - Fin*2 = 0
(W \, N)*(0.5 \, m) - (20} \, N)*(2 \, m) = 0\\
W= \frac{40}{0.5}=80 \, N

Because the output force is equal to W,
F_{out} = 80 \, N

Answer: The output force is 80 N

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