Ask a New Question

A 20,000 kg railroad car is traveling at 3 m/s when it collides and couples with a second, identical car at rest. What is the resulting speed of the combined cars?

2 answers

starting momentum=final momentum
20,000*3+0=40,000V solve for v.

1.5

Ask a New Question or answer this question.

Similar Questions

a 20,000kg railroad car is traveling at 3m/s when it collides and couples with a second, identical car at reat. What is the
1. 0 answers
A railroad car of mass m = 30000 kg movingat v1 = 2.9 m/s collides and couples with two coupled railroad cars, each of the same
1. 1 answer
A 40,000 kg railroad car initially traveling at 10 m/s collides in elastically with a 20,000 kg railroad car intially at rest.
1. 0 answers
A 40,000 kg railroad car initially traveling at 10 m/s collides in elastically with a 20,000 kg railroad car intially at rest.
1. 1 answer

more similar questions