- #1
rootX
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Homework Statement
A physics book is thrown @ 12 km/h [N 28 E] mass = 1.54 kg
and a chemistry book @ 9 km/h [N 65 W]; mass = 1.82 kg
if they collided in an elastic collision find final velocities of each book.
Homework Equations
those two momentum-energy conservation formulas.
The Attempt at a Solution
so, I assumed that frame of ref. is moving @ 9 km/h [N 65 W]
and then found relative velocities, and using those two formulas find the velocities of both books, and again converted the final relative velocities to original vs.
and got 9.75 km/h [N59 W] for the physics book, and 11.07 km/h [N 32 E] for the chemistry book.
I am not sure about my answers because I had to do many calculations, and if you can check them for me?
<is there an easier way to solve such problems?
I was wondering about center of mass thing, but I did not try using that way because I really dunn know if that would be an easier way and also I dunn even know how to find the velocity of the center of the mass of this system>