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ajayfurlow
28.01.2021 •
Mathematics
The Vertical position y (in feet) of a rock T seconds after it was dropped from a Cliff is given by the formula y= -60tsquared +4t+380. The base of a Clift corresponds to y=0 after how many seconds with a rock hit the ground at the base of the Cliff
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Ответ:
2.48 seconds
Step-by-step explanation:
The given function is
When
the ball will be at the ground
So, the time taken by the rock to hit the ground is
.
Ответ: