A mass of $10 k g$ is at a point $A$ on a table. It is moved to a point $B$ . If the line joining $A$ and $B$ is horizontal what is the work done on the object by the gravitational force? Explain your answer.

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Solution

Force of gravity and displacement are perpendicular to each other.
Hence, work done is zero.

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A mass of 10 kg is at a point A on a table. It is moved to a point B. If the line joining A and B is horizontal what is the work done on the object by the gravitational force? Explain your answer.

Force of gravity and displacement are perpendicular to each other. Hence, work done is zero.

A mass of $10 k g$ is at a point $A$ on a table. It is moved to a point $B$ . If the line joining $A$ and $B$ is horizontal what is the work done on the object by the gravitational force? Explain your answer.

Force of gravity and displacement are perpendicular to each other.
Hence, work done is zero.