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1. |
A body having 7 kg of mass moves slowly and covers a vertical height of 14 m. What is the work done in Joules and what force causes this work? Take g = 10 m/s2. |
A. | 980, gravity |
B. | 980, force acting opposite to gravity |
C. | 1000, gravity |
D. | 1000, force acting opposite to gravity |
Answer» B. 980, force acting opposite to gravity | |