Physics
JAMB 2005
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
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B.
r/R
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C.
(r/R)2
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D.
R/r
Correct Answer: Option D
Explanation
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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