February 23, 2017

Homework Help: Physics

Posted by Anonymous on Saturday, October 18, 2008 at 5:01pm.

were are doing free fall right now in the class

the question is

A worker drops a wrench form the top of a tower 80.0m tall. What is the velocity when the wrench strikes the ground?

I know that the change of distance 80.0m

I know aceleration of free fall is -9.81m/s^2

but I don't think that I have enough information to find the velocity final because I don't know the velocity initial I'm completly lost

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