- #1
Quarlep
- 257
- 4
Homework Statement
Find the average velocity of shell while its moves a velocity v' and expands a velocity v.
Sphere radius is R
Expansion velocity v
Movement velocity v'
Homework Equations
I think there's no need an equation.[/B]
The Attempt at a Solution
I try to find average velocity but its vector.So I made max velocity v+v' and min velocity v-v' then I add them and divide two and I find v but I think I made a mistake.