3. An 8500 kg railway car moves right at 4.5 m/s, and a 9800 kg railway...

Question

Question

Answer 1

Answer #1

Using conservation of momentum, we can write:

(8500*4.5) + (9800*-3.9) = (8500+9800) v

=> v = 0.00164 m/s to the right

Answer 2

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