Question

The virtual work done by tension T is what?​

Answer 1

Answer:

The virtual work done by tension is zero.

Explanation:

When a particle is moving on a plane surface, the motion is perpendicular to the normal reaction. Therefore, no work is done on the particle.

In case of a pendulum, the motion of the bob is also in the perpendicular direction to the tension in the string (force of constraint). Therefore, no work is said to be done on the bob.

Answer 2

The virtual work done by the tension is zero.

Explanation:

• The virtual work done by the tension is zero.
• For instance when a particle is moving on a flat surface then the direction of the normal reaction force is perpendicular to the particle.
• The angle theta becomes 90 degrees and the work done is also zero.
• W = F.d cos 90° = 0
• Thus we can say that No work is done.