potential energy, momentum

Question

Two carts mounted on an air track are moving toward one another. Cart 1 has a speed of 0.9 m/s and a mass of 0.46 kg. Cart 2 has a mass of 0.75 kg.

 If the total momentum of the system is to be zero, what is the initial speed (in m/s) of Cart 2? (Enter a number.)

Determine the system's kinetic energy (in J) in order to substantiate your answer to part (b). (Enter a number.)

Answer 1

Hi there!

I recorded a brief video (~5 minutes) in which I explain and solve this problem.

I invite you to work through it yourself, to check my calculations and ensure everything makes sense.

Please let me know if you need any further help on this subject!

-Kimberly