Direction: Two circular shafts made of same material, one solid (S) and one hollow (H), have the same length and polar moment of inertia. Both are subjected to same torque. Here, θS is the twist and τS is the maximum shear stress in the solid shaft, whereas θS is the twist and τH is the maximum shear stress in the hollow shaft.
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A bar of circular cross section is clamped at ends P and Q as shown in the figure. A torsional moment T = 150 Nm is applied at a distance of 100 mm f rom end P. The torsional reactions (Tp TQ) in Nm at the ends P and Q respectively are
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- (50,100)
- (75,75)
- (100,50)
- (120,30)
Correct Option: C
T = 150 Nm
TJP & TJQ = 150 Nm
θA = θB
TJP = 2TQ.
3TQ = 150
TQ = 50 Nm
TP = 100 Nm (
100, 50) = (TP, TQ)
