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On the 2nd example with 2 masses (m&1/2m) on a string. When calculating the force of 1/2m, why is the equation set up as (1/2 mg -T)? why not (T-1/2 mg) ?
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Kathryn063

by Kathryn063 at December 10, 2010

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oh~ i figured it out..

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Kathryn063

Kathryn063 December 10, 2010

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could u please tell the answer then?

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risania

risania September 20, 2011