A uniform rod has a weight of 40 N and a length of 1 m. It is hinged to a wall [at the left end]and held in a horizontal position by a vertical massless string[at the right end]. Find:
1.Force in the string
2.Magnitude of hinge force
Dear student ,
Here in this case the sum of torque is equal to zero .
Now look this is the magnitude of torque exerted by the string about a horizontal axis and perpendicular to the torque .
Now the force on the string is the is ,
Now to find the three forces look there are only three forces acting on the rod and this three forces are vertical .
Now the hinge force is ,
Regards