Cookie182
Individui Superiore
hmm just lookin over sum past trials from my skool in order to prepare. Havent done orbital spped in ages and we barely did anythin in class on it.
Heres the question- i use the formula and stuff but i get an orbital speed of 6532.56 m/s (i think the formula gives it to u in m/s)
anywayz sounds too big for me
Here is the question-
Question 18- (3 marks)
A satellite has a mass of 250 kg and is orbiting the Earth at an altitude of 3000km. The Earth’s equatorial diameter is 12756 km.
(a) - Determine its orbital speed. (2 marks)
(b) – Compare the orbital speed of a 500 kg satellite in an identical orbit. (1mark)
I used the formula-
V= Sq root GM/r
this formula completely ignores the mass of the sateliite which they give u- i think to trick u- as all objects at the same altitude from the earth orbit at teh same speed independent of their mass i beleived. Anywayz sum 1 hav a go for us
thanxs
Heres the question- i use the formula and stuff but i get an orbital speed of 6532.56 m/s (i think the formula gives it to u in m/s)
anywayz sounds too big for me
Here is the question-
Question 18- (3 marks)
A satellite has a mass of 250 kg and is orbiting the Earth at an altitude of 3000km. The Earth’s equatorial diameter is 12756 km.
(a) - Determine its orbital speed. (2 marks)
(b) – Compare the orbital speed of a 500 kg satellite in an identical orbit. (1mark)
I used the formula-
V= Sq root GM/r
this formula completely ignores the mass of the sateliite which they give u- i think to trick u- as all objects at the same altitude from the earth orbit at teh same speed independent of their mass i beleived. Anywayz sum 1 hav a go for us
thanxs