question_answer

Given that W = weight of load handled, W = weight of rope, and \[f=\] acceleration, the additional load in ropes of a hoist during starting is given by:

A) \[{{F}_{a}}=\left( \frac{W-{{W}_{r}}}{g} \right)f\]        

B) \[{{F}_{a}}=\left( \frac{W+{{W}_{r}}}{g} \right)f\]

C) \[{{F}_{a}}=\left( \frac{W}{g} \right)f\]              

D) \[{{F}_{a}}=\left( \frac{{{W}_{r}}}{g} \right)f\]