Q: Calculate the total engery of a geosynchonous satellite (one that orbits over a fixed spot) with amass of 1500 kg, orbiting earth at height 325 km (325 000m) with an orbital speed of 5000 m/s or 5.0x10^3(adsbygoogle = window.adsbygoogle || []).push({});

My Solution: Et = Ep + Ek

Ep = Mg delta H

Ek = 1/2 (m) V^2

thus Et = Mg(H) + 1/2 (m) v^2

(1500)(9.8)(325000) + 1/2(1500) (5000)^2

= 4.78x10^9 + 1.875x10^10

=2.353x10^10 j or 2.353x10^7 Kj

Is there a mistake in my calculations or has this question been done correctly?

**Physics Forums | Science Articles, Homework Help, Discussion**

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: Can someone Check this (Energy Question)

**Physics Forums | Science Articles, Homework Help, Discussion**