The distance formula is , where
and
are the points.
Substitute in the points.
Subtract.
Solve the exponents.
Add.
Now, we can simplify this square root just a little bit. has a square factor of
.
The square root of equals
.
Chuck drops a rock from a height of 70 m. How long will it take the rock to hit the ground? Use the formula h(t)=−4.9 t 2 + v o
t+ h o , where v o is the initial velocity and h o is the initial height. Round to the nearest tenth of a second.
2 answers:
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