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1. |
The force applied on a body can be given as F = 4i + 2j + 6k. The displacement of the body is given by s = 3i + 9k. Calculate the power at t = 2 seconds. |
A. | 66 W |
B. | 33 W |
C. | 30 W |
D. | 15 W |
Answer» C. 30 W | |