A 1.0 kg ball and a 2.0 kg ball are connected by a 1.0-m-long
rigid, massless...
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Physics
A 1.0 kg ball and a 2.0 kg ball are connected by a 1.0-m-longrigid, massless rod. The rod is rotating cw about its center ofmass at 19rpm .
What torque will bring the balls to a halt in 5.0s ?
Express your answer to two significant figures and include theappropriate units.
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4.0 Ratings (605 Votes)
First you need to find the center of mass To do this use the equation MR m1r1 m2r2 Lets just say that baseball 1 is at a position r 0 then baseball 2 would be at r 1m So MR 1kg 0m 2kg 1m MR 2 kgm Then to find the position of the center of mass simply divide by the total mass M which is 1kg 2kg 3kg R 2kgm 3kg R 23 m
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