- #1
Priyadarshini
- 191
- 4
Homework Statement
Homework Equations
Torque=one of the forces x the perpendicular distance
moment=force x perpendicular distance
The Attempt at a Solution
moment of pulling the weight up around the disc:
1.2/2 = 0.6 m
0.6-0.2 = 0.4 m
moment= 0.4 x 900 = 360 Nm
To lift it, the torque of the rod has to be 360 Nm too
So,
F x 1.2 = 360
F = 300 N
But the answer is 150N