Answer
£=16
Work Step by Step
The ratio of maximum to minimum force is 0.25/0.75 = 5/3 in this case, which implies
5/3 = 1+ 1÷4£/ 1-1÷4£
£ = 16
Of course , this could also be figured illustrated in part (a) , looking at the maximum force ratio by itself and solving or looking the minimum force ratio ( 3/4) at theta is equal to 180° and solving for £
