A body of mass $2 k g$ is moving in a vertical of radius $2 m$ . The work done when it moves from the lowest point to the highest point is-

80 J

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40 J

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20 J

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0 J

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Solution

The correct option is A $80 J$
GIven mass of the body m= 2 kg
Height that the body is raised fro lowest position to highest position = 4 m
Work done will be only equal to the work done by the gravitational work
W= mgh = $2 \times 10 \times 4 = 80 J$

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A body of mass 2kg is moving in a vertical of radius 2m. The work done when it moves from the lowest point to the highest point is-

The correct option is A 80JGIven mass of the body m= 2 kg Height that the body is raised fro lowest position to highest position = 4 m Work done will be only equal to the work done by the gravitational work W= mgh = 2×10×4=80J

A body of mass $2 k g$ is moving in a vertical of radius $2 m$ . The work done when it moves from the lowest point to the highest point is-

The correct option is A $80 J$
GIven mass of the body m= 2 kg
Height that the body is raised fro lowest position to highest position = 4 m
Work done will be only equal to the work done by the gravitational work
W= mgh = $2 \times 10 \times 4 = 80 J$