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In an ideal wheel an axle system, R stand for the radius of ...

In an ideal wheel an axle system, R stand for the radius of the wheel and r is the radius of the axle. the mechanical advantage is

A.

(R/r)2

B.

r/R

C.

(r/R)2

D.

R/r

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Correct answer is D

In a wheel and axle system of mechanic, the mechanical advantage is given by its ratio of the radius of the wheel R, to the radius of the axle r. that M.A = R/r

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