Answer:
Force = 504.6 N
Explanation:
Weight, W = mg
Weight of object = 87 N
Effort length = 9.2 m
Resistance length = 3.4 m
The required length, h = Effort length - Resistance length
= 9.2 - 3.4
= 5.8 m
But,
F = mgh
= W x h
F = 87 x 5.8
= 504.6 N
The value of force required to lift the weight is 504.6 N.