A car whose mass is 900 kg travels east along a highway at 50.0 km/h. What is the magnitude of the momentum vector of this car?
(a) 450 kg . m/s
(b) 1.25 10
4 kg . m/s
(c) 4.50 10
6 kg . m/s
(d) 2.25 10
6 kg . m/s
(e) 6.48 10
4 kg . m/s
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