Answer :
Final answer:
The momentum of the 1000kg car moving southward at 20 m/s is 20000 kg m/s south.
Explanation:
The momentum of an object is calculated by multiplying its mass and velocity. In this case, the car has a mass of 1000kg and is moving southward at 20 m/s. Therefore, the momentum can be calculated as:
Momentum = Mass x Velocity
Momentum = 1000kg x 20 m/s = 20000 kg m/s south.
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