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A hammer is dropped off a roof of an apartment building that is 80 meters high How long will it take to hit the ground?
Wiki User
∙ 13y ago
The hammer will take square-root(2x80/9.8)= 4.04 seconds to hit the ground.
The distance is related to the time by s=v0t + 1/2 gt^2 where vo, the initial velocity is=0.
The answer is 4.04 or rounded is 4 seconds.
Wiki User
∙ 13y ago
Wiki User
∙ 12y agoIf you just stepped off of the edge, you'll fall the first 80 meters in 4.04 seconds.
If you've already been falling for 10 seconds, then you'll fall the next 80 meters in 0.786 second.
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