J2. Elastic Collision II

We derive the general equations for elastic collisions of two bodies in one dimension. We find formulas for the two final velocities of the masses in terms of their masses and initial velocities. We start out by writing down the formulas using symmetry and the result from our previous section where we considered the first body colliding with a second body intially at rest. Then we derive the formulas in detail for a workout in algebra, verifying our results. Finally, we apply our formulas to baseball where a bat swings to hit an incoming ball.

[@mrblingworth]

Where are you?

[@DoctorPhys]

Retired from UNC Asheville and still in the area.

[@kprepairsandfixes4131]

I subscribed to you on six different accounts to try to get you to 10k 😂 it didnt work, sorry

[@DoctorPhys]

Thanks for your support. I believe I am up to 9,997 at this time.