A bucket full of water is drawn up by a person. In this case the work done by the gravitational force is:

Question

A bucket full of water is drawn up by a person- In this the work done by the gravitational force is-

Toppr Admin · Accepted Answer

As the gravitational force acts downward and the displacement of the bucket is upward- force acts opposite to the displacement of the body- The work done being a dot product of force and displacement-xA0-vectors- becomes negative as cosine of 1800 is -x2212-1-

A bucket full of water is drawn up by a person. In this case the work done by the gravitational force is:

As the gravitational force acts downward and the displacement of the bucket is upward, force acts opposite to the displacement of the body. The work done being a dot product of force and displacement vectors, becomes negative as cosine of 1800 is −1.

As the gravitational force acts downward and the displacement of the bucket is upward, force acts opposite to the displacement of the body. The work done being a dot product of force and displacement vectors, becomes negative as cosine of $180^{0}$ is $- 1$ .