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SCAN0016 - 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? “\Tu KOO,OOQ(L¥B—i~ $000009 ~ no ooav V 2 200,000 + ‘10 (300 E $10,000 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? mew v 0° Q mi: 3%00 Les “\3-‘22‘gom/3 m2 : 330 Kg/Mm (quan-z B‘EKCA APEQ => 9;: P4 3‘200 + 3H”: ...
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