Physics, 19.02.2020 07:01 motionlessinwhite18
Railroad car A, with mass 6275 kg, is traveling east at 6.5 m/s along a straight track. It strikes railroad car B, with mass 5155 kg, which is also traveling east along the same track at 3.8 m/s. The two railroad cars stick together. Assume the track is frictionless. How fast do the two attached railroad cars move immediately after the collision?
a. ANALYZE AND SKETCH THE PROBLEM
Knowns Unknowns
mA = vAi = = ?
mB = vBi =
B. SOLVE FOR THE UNKNOWN
Define the system
Write Pi = Pf in terms of the railroad cars’ masses and velocities.
Solve for vf
Answers: 1
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Railroad car A, with mass 6275 kg, is traveling east at 6.5 m/s along a straight track. It strikes r...
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