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irakobra [83]
3 years ago
12

A rock drops from a height of 60m. how long does it take for it to hit the ground?

Mathematics
1 answer:
laila [671]3 years ago
8 0

To solve for the time an object takes to hit the ground, the equation

<em>y</em> <em>= y₀ + v₀t + ½gt²</em>, or just <em>0 = y₀ +½gt²</em> since there is no initial velocity and the final y position is 0 (since it is on the ground). Therefore, <em>t = (−2y₀/g)^½.</em>

(-2*60/-9.8)^½ = 3.50 seconds.

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