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1. A 9,000kg bus has a velocity of 15 m/s. What is the kinetic energy of the bus? 2. At a velocity of 20m/s, a 10,000kg truck is traveling across the street. What is the truck's kinetic energy?​

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Answer:

1. KE= ½mv²

KE=½ (9000kg) (15m/s)²

KE=½ (9000kg) (225m²/s²)

KE ½ (2,025,000kg.m²/s²)

KE= 1,012,500 J

2.KE= 1 / 2 mv²

KE=½ (10,000kg) (20m/s)²

KE=½ (10,000kg) (400m²/s²)

KE=½ (4,000,000kg.m²/s²)

KE=2,000,000 J

Explanation:

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