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A wagon moving down the road has 2000 kg m/s of momentum. Then a 500-kg bag of feed with no velocity is added to the wagon. What is the new momentum of the wagon with the feed bag in kg m/s?

Respuesta :

Answer:

The new momentum of the wagon with the feed bag is (also) 2,000 kg·m/s

Explanation:

The given momentum of the wagon = 2000 kg·m/s

The mass of the added bag = 500 kg

The initial velocity of the bag of feed = 0 m/s

Therefore, by the conservation of momentum principle, we have;

The total initial momentum of the wagon and the bag of feed before the bad of feed is added to the wagon = The new momentum of the wagon with the feed bag

Which gives;

The total initial momentum of the wagon and the bag of feed before the bad of feed is added to the wagon  = 2,000 kg·m/s + 500 kg × 0 = 2,000 kg·m/s = The new momentum of the wagon with the feed bag

Therefore, the new momentum of the wagon with the feed bag = 2,000 kg·m/s.