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A nut has been tightened by a force of 180 N using an 8 cm long spanner. What length of a spanner is required to loosen the same nut with 150 N?(a): 11 cm (b): 8.5 cm (c): 9.6 cm (d): 10.9 cm |
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Answer» Answer: here the TORQUE REQUIRED to tighten or LOOSEN the nut will be same Explanation: now applied to tight the nut T=force×its perpendicular LENGTH T=(180N)(0.08m) =14.4Nm 14.4=(150N)(length ) length=14.4/150 =0.096m =9.6cm |
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