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The mechanical advantage of a wheel axle is 5 what will be thereforce required to lift a 200kg wt?

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The mechanical advantage of a wheel axle is 5 what will be thereforce required to lift a 200kg wt?
A. 10kg wt.
B. 2 kg wt.
C. 20 kg wt.
D. 40 kg wt.
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Correct Answer - D
`5=(200)/("Effort")`
`therefore "Effort"=40 kg.wt`
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