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A block of mass m=2kg is pulled by a fo...

A block of mass `m=2kg ` is pulled by a force `F=40 N` upwards through a height `h=2 m.` Find the work done on the block by the applied force `F` and its weight mg. `(g=10m//s^2)`.

A

80 J, -45 J

B

40 J, 35 J

C

zero, 0.25 J

D

80 J, -40 J

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The correct Answer is:
D
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