In virtual work equation some forces are neglected. Select the most appropriate answer from the following:

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RRB Paper · Accepted Answer

The virtual work concept is used in the application of the principle of least action to the study of forces and movement of a mechanical system. In a virtual work equation reaction is due to a rough surface on a body that rolls on it without slipping or a smooth surface with which body is in contact and reaction at a point or on an axis, fixed in space, around which a body is constrained to turn are neglected.

In virtual work equation some forces are neglected. Select the most appropriate answer from the following:

Reaction of a rough surface on a body which rolls on it without slipping.

Reaction of any smooth surface with which the body is in contact.

Reaction at a point or on an axis

fixed in space

around which a body is constrained to turn.

All of the above

The correct answer is `No. 4: fixed in space`

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In virtual work equation some forces are neglected. Select the most appropriate answer from the following:

Reaction of a rough surface on a body which rolls on it without slipping.

Reaction of any smooth surface with which the body is in contact.

Reaction at a point or on an axis

fixed in space

around which a body is constrained to turn.

All of the above

The correct answer is No. 4: fixed in space

The correct answer is `No. 4: fixed in space`