Asked by SIMP( secret important person)
WHICH FORMULA DO I USE AND HOW DO I WORK IT OUT? I SERIOUSLY NEED HELP!
use the formula h=rt-4.9t^2 when h is in meters and h=rt-16t^2.
A rocket is fired upward with an intial speed of 1960m/s. After how many minutes does it hit the ground?
use the formula h=rt-4.9t^2 when h is in meters and h=rt-16t^2.
A rocket is fired upward with an intial speed of 1960m/s. After how many minutes does it hit the ground?
Answers
Answered by
Reiny
The first formula is for metric units (h is in metres), the second for Imperial units (h is in feet) .
If you live in the US, use the second, if you live elsewhere, use the first.
If you live in the US, use the second, if you live elsewhere, use the first.
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