Give it a try... someone!
Q1: A long, thin, pliable carpet is laid on the floor. One end of the carpet is bent backand then pulled backwards with constant unit velocity, just above the part of the carpet which is still at rest on the floor.
Find the speed of the Centre of mass of the moving part. What is the minimum force needed to pull the moving part, if the carpet has unit length and unit mass?
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UP 0 DOWN 0 0 2