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Harris10 Harris10
  • 20-01-2017
  • Physics
Answered

a 6,600 kg train car moving at +2.0m/s

Verified Answer :

VictoriaRose1 VictoriaRose1
  • 20-01-2017

The answer is v = -.2 5

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JayDilla
JayDilla JayDilla
  • 20-01-2017

Assuming the whole question is this : 

A 6600 kg train car moving at +2.0 m/s bumps into and locks together with one of mass 5400 kg moving at 3.0 m/s. What is their final velocity?

you would do:

6600(2) - 5400(3) = (6600+5400)v
13200 - 16200 = 12000v
v= -0.25 m/s

Answer Link

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