A) ? 490 Joules
B) + 490 Joules
C) ? 980 Joules
D) + 980 Joules
Correct Answer: D
Solution :
As the body moves in the direction of force therefore work done by gravitational force will be positive. \[W=Fs=mgh=10\times 9.8\times 10=980J\]You need to login to perform this action.
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