When a positive rod is placed to the right of sphere B, and the spheres are separated, the reason behind this is the same charge on the sphere as the rod i.e. the right of the sphere also had a positive charge. Thus, the same positive charges could not reside on the right side surface of the sphere due to which it separation happens.
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<span>A. A girl hits a volleyball. Her hand exerts a force on the ball, and the ball exerts a force on her han</span>
To establish equilibrium all torques need to be justified , the body needs to be in translational as well as rotational equilibrium.
<h3>What is equilibrium and why balancing the torques is not enough to establish equilibrium?</h3>
- Equilibrium is a condition of balance between forces, or influences from opposite ways .
- For a body to attain equilibrium , need to have both translational as well as rotational equilibrium.
- Force is responsible for translational equilibrium and torque is responsible for rotational equilibrium.
- Considering a rod , and applying equal forces at the ends of the rods in upward direction, and seeing the net torque to be zero.
- Hence the body needs to be in both translational and rotational equilibrium to attain equilibrium.
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