This question involves the concepts of momentum, speed, and mass.
The momentum of the car is "24960 N.s".
Momentum is defined as the quantity of motion contained in a body. Mathematically, it is defined as the product of the mass and speed of the object:
P = mv
where,
Therefore,
P = (1600 kg)(15.6 m/s)
P = 24960 N.s
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