Question

A man is lowering a bucket full if water with an acceleration of 1m/s2. The work done is

Answer 1

Explanation:

here work done by gravitational force is positive because the direction of gravitational force and displacement of the body are along same direction . Work done by the man is negative

Answer 2

A man is lowering down the bucket full of water with an acceleration. The work done is positive by the man.

Explanation:

• A man is lowering down the bucket full of water with an acceleration. The work done is positive by the man. Since the force and displacement is in the same direction.
• Displacement refers to the change in the place of the object.
• Whereas force refers to the pressure exerting on a particular object.
• Hence, while lowering down the bucket the force and displacement are in the same direction.
• Therefore, the work done is positive by the man.