What is the object with the most momentum?

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Momentum is defined as the product of an object's mass and its velocity. In this discussion, the objects being compared are a parked truck, a moving car, and another car moving at a slower speed. The parked truck has a mass of 5,000 kg but zero velocity, resulting in zero momentum. The moving car with a mass of 2,000 kg at 20 km/h has a momentum of 1,111.11 kg·km/h, while the 3,000 kg car at 10 km/h has a momentum of 300 kg·km/h. Therefore, the car going 20 km/h has the most momentum.
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Homework Statement



Which object has the most momentum?

A. 5,000 kg truck parked on the road.
b. 2,000 kg car going 20 km/hour.
c. 3,000 kg car going 10 km/hour?



The Attempt at a Solution



I think it is C. 3,000 kg/10 km = 300
 
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