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October 23, 2014

Homework Help: physics

Posted by julia on Tuesday, October 9, 2012 at 9:09am.

A frictionless30degrees incline should provide an acceleration of 4.90m/s2 down the incline. A student with a stopwatch finds that an object, starting from rest, slides down a 15m very smooth incline in exactly 3s. Is the incline frictionless?

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