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The Delivery Truck A delivery truck has a mass of 3,500 kg and moves along a highway at a velocity of 15...

5. The Delivery Truck
A delivery truck has a mass of 3,500 kg and moves along a highway at a velocity of 15 m/s. A smaller truck has a mass of 2,000 kg and travels in the same direction at 10 m/s.
• Calculate the momentum of each truck.
• Which truck has the greater momentum, and by how much?

Answer

5. The Delivery Truck

  1. Using momentum p = mv: delivery truck: p = 3,500 × 15 = 52,500 kg·m/s; smaller truck: p = 2,000 × 10 = 20,000 kg·m/s. Both momenta are in the direction of travel.
  2. The delivery truck has the greater momentum by 52,500 − 20,000 = 32,500 kg·m/s.

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