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3.)An object is resting at the bottom of two strings which areinclined at an angle of 120° with each other. Each string canwithstand a tension of 20 N. The maximum weight of theobject that can be sustained without breaking the strings is(a) 10 N(c) 20 2 N(b) 20 N(d) 40 N4. The pulleys and strings shown in the figure are smooth andof negligible mass. For the system to remain in equilibrium,the anglè 0 should bern(a) 0°(c) 45°(b) 30°(d) 60° |
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Answer» 3. If W is the maximum weight. Then,= W = 2T cos 60= W = 2 * 20 * 1 / 2 = 20 N. |
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