February 27, 2017

Homework Help: physics

Posted by Lauren on Sunday, January 27, 2013 at 4:20pm.

A cement block accidentally falls from rest from the ledge of a 51.7-m-high building. When the block is 14.9 m above the ground, a man, 2.05 m tall, looks up and notices that the block is directly above him. How much time, at most, does the man have to get out of the way?

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