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The cover of a jar has a diameter of 8 cm. Two equal, but

oppositely directed, forces of 20 N act parallel to the rim of the
lid to turn it. What is the magnitude of the applied torque?


Torque = force *r 
here 2 equal and opp foeces are acting 
therefore net force = 0
hence trrque is also = 0
0 0 0
The net forc will be 0 as 20N-20N=0 so the answer will be 0...
0 0 0
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