Question 872621
The torque generate by a 100 lb force on 0.5 ft long wrench = 100 * 0.5 = 50

Force applied to an 0.8 ft long torque wrench to achieve a torque of 50 can be expressed as
0.8*f=50
f=50/0.8=62.5 lb

Therefore, the required force to be applied is 62.5 lb.