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 John has an object suspended in the air. It has a mass of 50 kg and is 50 m above the ground. How much work would the object do if it was dropped? Gravity.

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Presentation on theme: " John has an object suspended in the air. It has a mass of 50 kg and is 50 m above the ground. How much work would the object do if it was dropped? Gravity."— Presentation transcript:

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2  John has an object suspended in the air. It has a mass of 50 kg and is 50 m above the ground. How much work would the object do if it was dropped? Gravity is 9.8 m/s 2.

3  Mrs. Jacobs dropped an object from 10 m. She knows it did 50 joules of work and gravity is 9.8 m/s 2. How much was its mass?

4  Thomas dropped an 20 kg object. He knows it did 120 joules of work and gravity is 9.8 m/s 2. How high was the object when it was dropped?

5  What is the mass of a man running at 4.34 m/s if he has a kinetic energy of joules?

6  What is the speed of a 63.8 kg woman running with a kinetic energy of 1156 joules?

7  What is the speed of a kg woman running with a kinetic energy of 1307 joules?

8  What is the mass of a man running at 3.26 m/s if he has a kinetic energy of joules

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