Problem Statement: ME Board April 1997
A 60 ton rail car moving at 1 mile/hr is coupled to a second stationary rail car. If the velocity of the two cars after coupling is 1 ft/s (in the original direction of motion) and the coupling is completed in 0.5 second, what is the average impulsive force on the 60 ton rail car?
- A. 50 lbf
- B. 3500 lbf
- C. 1200 lbf
- D. 60 lbf
The average impulsive force on the 60 ton rail car is 3500 lbf.Solution: