Academic Integrity: tutoring, explanations, and feedback — we don’t complete graded work or submit on a student’s behalf.

A car of mass mA moving with velocity vA,1 collides with another car that has ma

ID: 1968999 • Letter: A

Question

A car of mass mA moving with velocity vA,1 collides with another car that has mass mB
and is initially at rest. After the collision the cars stick together and move with velocity v2. What is the change in mechanical energy due to the collision?

I know how to find the change in KE (using momentum conservation) but is there any change in potential energy? Or is the total change in mechanical energy equal to the change in kinetic energy? What would the PE's be for each cart before an after? I'm a little confused about this. Thanks!

Explanation / Answer

There is no change in P.E , change in K.E is equal to change in Mechanical energy

Hire Me For All Your Tutoring Needs
Integrity-first tutoring: clear explanations, guidance, and feedback.
Drop an Email at
drjack9650@gmail.com
Chat Now And Get Quote