Question

Is it possible that force is acting on a body but still work done is zero explain

Answer 1

Yes, it is possible.

For example:
If you push a wall you are applying force but there is no displacement of wall.
So work done which is equal to product of force and displacement will be zero.

Hope you get your answer.

Answer 2

Yes, a force may act on a object but the work done is always zero.

Explanation:

• Yes, a force may act on a object but the work done is always zero. There are the following cases:

1. The displacement will be zero.

2. The force is perpendicular to each other and the displacement.

We know that,

W = FS cos θ

Where,

W is Work done

F is Force

S is Displacement

θ  is Angle between displacement and force

From the formula itself, the work done is negligible when the displacement is nil.

• Example-1: No work is completed when one moves a static wall even after a really hard drive. If the force is still perpendicular to the way of motion, the work done is zero as well.

• Example-2: Work done on a horizontally moving body by the force of gravity is zero, since the gravitational force is parallel to the horizontal.

To know more about work done, visit:

The work done to increase the velocity of a car of 800kg from 5m/sec to 10m/sec

https://brainly.in/question/7777754

Calculate the amount of work done by a boy

when

(i) the boy holds the bundle of books of mass

5 kg for 5 minutes

the boy walks with the same bundle of

books along a level road at a speed of 5

ms!

(iii) the boy lifts up the same bundle of books

by 1 m in order to kept it on a book shelf,

(g = 9.8 ms?).

https://brainly.in/question/11857730