The screw has a single thread. If a total torque of 10.50 lb in is available to lift a weight, the heaviest weight that can be lifted directly by the screw, as described in class, is Outside dia thread count thread friction coeff collar friction coeff collar dia
5/8 in 8 threads/in 0.10 0.06 0.6875 in
A. 72.3 lbf
B. 152.2 lbf
C. 80 lb
D. 154.3 ibt
E. 32 ibt