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1. |
A mass of 10 kg is suspended vertically by a rope from the roof. When a horizontal force is applied on the rope at some point, the rope deviated at an angle of 45° at the roof point. If the suspended mass is at equilibrium, the magnitude of the force applied is (g = 10 ms-2) |
A. | 200 N |
B. | 140 N |
C. | 70 N |
D. | 100 N |
Answer» E. | |