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April 28, 2015

Homework Help: Physics

Posted by peter on Thursday, October 14, 2010 at 1:19am.

A dynamite blast sends a piece of rock (shatter) straight upwards. After 2.31x10^0 s the piece of rock has a velocity of 1.56x10^1 m/s. Assuming there is no air resistance, what is the initial velocity of the rock, to two significant figures?

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