Find force T and pull force F QUESTION Determine the force T at the tension indi

Question

Find force T and pull force F QUESTION Determine the force T at the tension indicator and the pull force F in each of the cases below. The required torque at the pipe is 36,000 ft-lb and the tong length is 4 ft. Tension indicator (T) ASSAARE CABLE DE AMARAE Tension indicator (T) Pull force (F) Pull force (F) CARLE DE t De F 4,50 T- 9,000 lb aurnty F- 3,000 lb T = 9,000 lb anner CASLE OE Tension indicator (T) Pull force (F Pull force (F CABLE D AMARRE CABLE D Tension indicator (Tm F 3,000 lb T6,000 lbat ouyT F = 4,500 lb awner/F 4,500 lb T = 4,500 lb

Explanation / Answer

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1.

If the system is in equilibrium, the net torque exerted on the system is zero.

Hence,

net torqure = [torque] - T [L]

Hence, the force at the tension indicator is,

T = Torque /L = 36000 ft-lb / 4 ft = 9000 lb

The pull force F is balanced with the half of the tension in the cable.

If the pull force applied downward and the wight at the end of the other

cable is applied the same force in down-ward direction. if the system is

in equilibrium, the net force on the system is also zero. that is,

2F = T

Then, F = T/2 = 9000 lb/2 = 4500 lb

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