Question

Work done upon a body is

• A. a vector quantity
• B. a scalar quantity
• C. both (a) and (b)
• D. none of these

Answer 1

The correct option is B

a scalar quantity

1. Scalar quantity: The physical quantity which has only magnitude but no direction.
2. Work done upon a body is a scalar quantity.

$$\begin{gathered} W=\overrightarrow{F.}\overrightarrow{s} \\ \text{or},W=Fs\cos \theta \end{gathered}$$

3.Thus work done by a force is equal to the scalar or dot product of the force and the displacement of the Body.

Thus, Work done upon a body is a scalar quantity. Hence, option B is the correct answer.