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3 years ago

6

Hi! Can you help me? A rock is dropped off a tall building and takes 4 seconds to hit the ground. How fast was it going? Using y

our last answer, how tall was the building? Thanks! :)

1 answer:

AURORKA [14]3 years ago

4 0

<span><span>Free fall distance h=<span /></span></span>78.4532 m<span><span><span>
</span></span><span>Free fall velocity v=</span></span>39.2266 m/s<span><span><span>
</span></span><span>= </span></span>141.21576 km/h<span><span><span>
</span></span></span>

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