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SCAN0033 - 5 A 50,000 kg railroad car moving at 4.0 m/s...

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Unformatted text preview: -/\ 5. A 50,000 kg railroad car moving at 4.0 m/s overtakes and couples with a second car of mass 60,000 kg that is initially moving at 2.0 m/s on the same track. What is the speed of the two cars after they are coupled? MAM +m1 \12 :: ‘(m,+mz>\/ m EEZESSQW \/= le—rmzvz ‘ town‘s W ifOr/gé vo—Vszlj m‘amz ”MW” J Wfiéfilfléj "f” may 3%“ \/—.~.~ mm54)+/mo,066 woke 6. A 3800 kg open railroad car coasts along with a constant speed of 8.60 m/s on a level track. Snow begins to fall vertically and fills the car at a rate of 3.50 kg/min. Ignoring friction with the track, what is the speed of the car after 90 min? 3- 5/‘9/m/n Y 90min 3 3751?? ...
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