- #1
KillerZ
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Homework Statement
The satellite S travels around the Earth in a circular path with a constant speed of 20 Mm/h. If the acceleration is 2.5m/s2, determine the altitude h. Assume the Earth's diameter to be 12 713 km.
Homework Equations
[tex]a_{n}= \frac{v^{2}}{\rho}[/tex]
The Attempt at a Solution
I thought that [tex]a_{t}= 0[/tex] because speed is constant and [tex]a_{n}= 20 Mm/h[/tex] and I just solved the above equation for [tex]\rho[/tex] but that came out to a negative number so that's not right.