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1. |
A force F = (5i 3j +2k) N moves a particle from r1 = (2i + 7j + 4k) m to r2 = (5i + 2j + 8k) m. What is the work done by the force? |
A. | 18 J |
B. | 28 J |
C. | 38 J |
D. | 48 J |
Answer» D. 48 J | |