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1. |
A weight of 500 N is held on a smooth plane, inclined at 30° to the horizontal by a force P acting 30° above the plane as shown in the figure below. The reaction of the plane on the weight will be: |
A. | 500 N |
B. | 250 N |
C. | 476 N |
D. | 288 N |
Answer» E. | |