So, I did what you said, and its starting to look like an answer, thanks for that.
But now I have:
u1x = (u1x)^2 ((1839/1841)^2 + (1840)(2/1840)^2)
with the left side being inital and the right side being the final KE's
I was wondering though, how would I convert that into a percentage?
So your saying that when you add the equaitons and get:
V1i = 1841v2f
How can this be used to compare the two KE?
since KEi = (1/2)mv^2
KEi = (1/2)(1)(1841v2f)^2
It doesn't give an actual number, and again there ends up with two variables
and then KEf would be:
I have tried combining the two equations, but that only gives me a new equation with two unknown velocities, and I need all three velocities to find the inital and final KE.
How would I use an equation with 2 unknown variables to compare the initial and final KE??
An electron collides elastically with a hydrogen atom that is initially at rest. Assume all the motion occurs along a straight line. What fraction of the electron's initial kinetic energy is transferred to the atom? (Take the mass of the hydrogen atom to be 1840 times the...