How much torque must the pin exert to keep the rod from rotating if the rod has

Question

How much torque must the pin exert to keep the rod from rotating if the rod has a length L = 80 cm and a mass m = 3.0 kg? Calculate this torque about an axis that passes through the point where the pin enters the rod and is perpendicular to the plane of the figure.
N

How much torque must the pin exert to keep the rod from rotating if the rod has a length L = 80 cm and a mass m = 3.0 kg? Calculate this torque about an axis that passes through the point where the pin enters the rod and is perpendicular to the plane of the figure. Nhat Am ---Select--- clockwise counterclockwise zero net torque

Explanation / Answer

Total torque=0.4*3*9.81+0.8*9.81*0.5

=15.696Nm......i.e. 15.7Nm

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