A 9500 kg railroad car travels alone on a level frictionless track with a constant speed of 17.0 m/s . A 4550 kg load, initially at rest, is dropped onto the car. What will be the cars new speed?
Frequently Asked Questions
What scientific concept do you need to know in order to solve this problem?
Our tutors have indicated that to solve this problem you will need to apply the Adding Mass to a Moving System concept. You can view video lessons to learn Adding Mass to a Moving System. Or if you need more Adding Mass to a Moving System practice, you can also practice Adding Mass to a Moving System practice problems.
How long does this problem take to solve?
Our expert Physics tutor, Julia took 1 minute and 28 seconds to solve this problem. You can follow their steps in the video explanation above.