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1. |
A body of mass 10 kg is dropped to the ground from a height of 10 metres. The work done by the gravitational force is \[(g=9.8\,m/{{\sec }^{2}})\] [SCRA 1994] |
A. | ? 490 Joules |
B. | + 490 Joules |
C. | ? 980 Joules |
D. | + 980 Joules |
Answer» E. | |