A block of mass 2kg is released from A on the track tht is one quadrant of a circle of radius 1m It slides down the track and reaches B with a speed of 4 ms and finally stops at C at a distance of 3m from B The work done against the force of friction is (a) 10J A 2k (b) 20 J Im (c) 2 J (d) 6J A bl...

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College Physics

ISBN: 978-0321601834

7th edition

Authors: Jerry D. Wilson, Anthony J. Buffa, Bo Lou

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