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October 26, 2014

Homework Help: PHYSICS - formula?

Posted by Anna on Tuesday, March 26, 2013 at 1:58pm.

Here is one of my questions from my physics study. It tells me the answer (35 J), but how do I find that answer? I would appreciate a formula or step by step calculation. Thanks! :)

A 30 kg kid on rollerskates is moving 1 m/s. His brother pushes him with a force of 5 N. What will be his kinetic energy after his brother pushes him 4.0 m? (35 J)

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