Posted by stephanie on Thursday, October 4, 2007 at 12:11pm.
A penny is dropped from the observation deck of the Empire State building (370 m above ground). With what velocity does it strike the ground? Ignore air resistance.
physics - DrBob222, Thursday, October 4, 2007 at 1:21pm
distance = 1/2 gt^2 Solve for time it takes for the penny to reach the ground.
Then distance = 1/2(Vinitial + Vfinal)t.
Vinitial is zero. You know distance and t, solve for Vfinal.
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