In the pulley system shown in the figure, the radii of the bigger and smaller pulleys are 2m and 1m respectively. Find the resultant torque at point O. (Take g=10m/s2)
A
200N-m
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
100N-m
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
0N-m
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
D
50N-m
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution
The correct option is C0N-m As we know, Torque =r⊥F Torque on smaller pulley =r⊥(mg) =1×(10×10)=100N-m (clockwise) Torque on bigger pulley =r⊥(mg) =2×(5×10)=100N-m (anticlockwise) Net torque on point O=τ1+τ2 =100+(−100) =0N-m