Question

The work done is zero if the angle between the force acting on a body and the displacement of the body is .........

Answer 1

Explanation:

The work done is zero if the angle between the force acting on a body and the displacement of the body is 0°

Answer 2

Answer:

The work done is zero if the angle between the force acting on a body and the displacement of the body is Zero.

Explanation:

• If the work done exists at zero, then the angle between the force and displacement stands $90^{\circ}$.
• Work is a scalar quantity, i.e., it only includes magnitude and no direction.
• Work done exists a scalar product of force and displacement, i.e., W=F.s or W=F s $\cos \theta$ The value of $\cos 90^{\circ}$ is 0, and as we know when anything exists multiplied with 0 the product is $0$.

if force exists acting on a body work done can be zero. When an object exists at rest and no external force except gravity is functioning on it in this case the work that would be zero as the force acting on it stands perpendicular.

Hence, The work done is zero if the angle between the force acting on a body and the displacement of the body is Zero.

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