Ask a New Question

Question

A railroad car with a mass of 12000 kg collides and couples with a second car of mass 18000 kg that is initially at rest. The first car is moving with a speed of 9 m/s before collision. If external forces can be ignored, what is the final speed of the two railroad cars after they couple?

I don't get why it says couples, what does that mean??? Thanks.
11 years ago

Answers

loc
no ans
7 years ago
sdfsd
sdfsdf
7 years ago

Related Questions

A railroad car with a mass of 2000kg is rolling at a speed of 15m/s. What force would be required to... A railroad car of mass 2.3*10^4 kg moving at 4.00 m/s collides and couples with two coupled railroad... A railroad car with a mass of 1.91 multiplied by 104 kg moving at 2.86 m/s joins with two railroad c... A railroad car with a mass of 1.93 104 kg moving at 3.24 m/s joins with two railroad cars already j... A railroad car with a mass of 2.35 × 104 kg moving at 3.90 m/s collides and joins with two railroad... A railroad gun of mass M = 3.0 kg fires a shell of mass m=1.0 kg at an angle of θ= 45.0 ∘ with respe... A railroad car with a mass of 12400 kg collides and couples with a second car of mass 18700 kg that...
Ask a New Question
Archives Contact Us Privacy Policy Terms of Use