Calculating Rocket Thrust (1 Viewer)

[kingkong123]

Hi guys,
I've been revising over a bit of space and have come across questions asking to calculate the size of a rocket's thrust when they give you they velocity of the exhaust gas and the rate a which it burns. Eg. A rocket with an exhaust velocity of 1.3 × 10^3 ms^–1 burns fuel at a rate of 2.7 × 10^3 kg s^–1. What is its thrust? Could someone please provide me with an explanantion of how to approach these questions?

Thanks ay

 

[IamBread]

 

[kingkong123]

im not sure, is it in the syllabus? did you learn it from uni physics or something? should i bother learning it?

thanks heaps anyway

 

[IamBread]

im not sure, is it in the syllabus? did you learn it from uni physics or something? should i bother learning it?

thanks heaps anyway

Haven't got to uni yet, still another 2 weeks to go but I do not remember it being in the syllabus at all, it was just something I knew. But there's no harm in learning it, I could be wrong.

 

[Fizzy_Cyst]

Thurst is a force, the unit of force is Newton (kgms^-2) -- looking at the units -- multiply the 2 numbers, that's about the only relevant explanation I could propose about getting such a question.

You don't learn about how to calculate thrust in HSC Physics

 

[nirukk]

The one I can find on Jacaranda is ΣF=ma
ΣF is equal to (Thrust minus mg)

That's all I can relate about thrust questins.