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.
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Answer:
Answer is zero(0)
Explanation:
It is because, the angle between force is 90 degree, cos90 is equal to 0 .
hope you understand
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