15. A 10000Kg car is moving toward north at a speed of 3m/s at noon. One hour later, the car is moving toward east at 4m/s. The change in momentum of the car during that onehour period is (a) 10000Kgm/s, toward east. (b) 50000Kgm/s, toward 37 degrees north of east. (c) 50000Kgm/s, toward 53 degrees north of east. (d) 50000Kgm/s, toward 37 degrees south of east.. (e) 50000Kgm/s, toward 53 degrees south of cast.
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