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When a force of 6.0 N is exerted at 30° to a wrench at a distance of 8 cm from the nut, it is just able to loosen the nut. What force F would be sufficient to loosen it if it acts perpendicularly to the wrench at 16 cm from the nut.? |
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Answer» Given in the question :- Refer to the attachment Force of 6N is ACTING on a BODY with the ANGLE 30°, Now we have to resolve the force of 6 N along the wrench and perpendicular to it. Now, Total TORQUE working on point A = 0 Hence The force component which is perpendicular to the wrench then P' =3.0 N The torque ( nut ) = 3.0 × 8/100 =0.24 N-m----(i) The torque of force F (nut) = F× 16/100 N-m------(II) Equating the two we get, F = 24/16 F =3/2 F=1.5 N Hope it Helps :-) |
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