Question

1. Calculate the kinetic energy of a 50 grams golf ball traveling at 12 m/s.
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2. How fast must a 1200 kg car be moving to have a kinetic energy of 22,000 J?
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3. How high would you have to lift an 8 kg box to give it a gravitational potential energy of 320 J?
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4. A weightlifter raises a 40 kg barbell from the floor to a height of 1.1 meters.
What is the gravitational potential energy of the barbell with respect to the floor?
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5. A ball has a kinetic energy of 120 J and is traveling at a velocity of 3 m/s. What is the mass of the ball?
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Answer 1

Answer:

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Explanation:

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Answer 2

Answer:

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