Inelastic collision problem/ unequal masses.

[randombill]

I'm trying to use the equations on http://teachers.web.cern.ch/teachers/archiv/hst2002/bubblech/mbitu/applications_of_special_relativi.htm" and I have solved the following. Is it correct?

 

[randombill]

This is a repost because the image link doesn't work in firefox.

I'm trying to use the equations on http://teachers.web.cern.ch/teachers/archiv/hst2002/bubblech/mbitu/applications_of_special_relativi.htm" and I have solved the following. . . . . Is it correct?


The equations I'm referring to are 2.9 for E.
Equation 2.1 for center of mass velocity.
Energy momentum relation is the 2nd equation in the picture below.

Substitute the energy-momentum relation into 2.9 and substitute the 2nd equation
into the cm velocity (2.1). This will yield the large single equation which uses 8 lines on a page.