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9. Work & Energy - Part 1 of 2

9. Work & Energy - Part 1 of 2

9. Work & Energy / Intro to Calculating Work / Problem 7

In the illustration below, a worker utilizes a hand cart to lift heavy crates. If the friction and the mass of the cart are neglected, and it is assumed that the work output equals the work input, determine the ratio of the output force (F_o) to the input force (F_i ) concerning the distances L_iand L_o from the center of the cart's wheels.

ANSWERS OPTIONS

A

$\frac{F_{o}}{F_{i}}=\frac{1}{L_{i}L_{o}}$

B

$\frac{F_{o}}{F_{i}}=L_{i}L_{o}$

C

$\frac{F_{o}}{F_{i}}=\frac{L_{o}}{L_{i}}$

D

$\frac{F_{o}}{F_{i}}=\frac{L_{i}}{L_{o}}$

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