View the step-by-step solution to:

# A(n) 12000 lb railroad car traveling at 7 ft/s couples with a stationary car of 7600 lb. The acceleration of gravity is 32 ft/s2 . What is their

A(n) 12000 lb railroad car traveling at 7 ft/s
couples with a stationary car of 7600 lb.
The acceleration of gravity is 32 ft/s2 .
What is their velocity after the collision?

What impulse did the first car receive?
Answer in units of lb s.

Speed=7 ft/sec
A=32ft/sec
Velocity after it gets coupled=12000*7/(12000+7600)
=4.28 ft/sec
=(12000*7)-(19000*4.28...

## This question was asked on Mar 29, 2011 and answered on Mar 30, 2011.

### Why Join Course Hero?

Course Hero has all the homework and study help you need to succeed! We’ve got course-specific notes, study guides, and practice tests along with expert tutors and customizable flashcards—available anywhere, anytime.

### -

Educational Resources
• ### -

Study Documents

Find the best study resources around, tagged to your specific courses. Share your own to gain free Course Hero access or to earn money with our Marketplace.

Browse Documents