Problem: A baseball weighs 5.13 oz. What is the kinetic energy, in joules, of this baseball when it is thrown by a major league pitcher at 95.0 mi/ h?By what factor will the kinetic energy change if the speed of the baseball is decreased to 67.2 mi/h?

FREE Expert Solution

Kinetic energy:

KE=12mv2


v1 = 95 mi/h

v2 = 67.2 mi/h

mass remains the same: compare the factor v2 in the equation:

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Problem Details

A baseball weighs 5.13 oz. What is the kinetic energy, in joules, of this baseball when it is thrown by a major league pitcher at 95.0 mi/ h?

By what factor will the kinetic energy change if the speed of the baseball is decreased to 67.2 mi/h?

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What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Kinetic Energy of Gases concept. If you need more Kinetic Energy of Gases practice, you can also practice Kinetic Energy of Gases practice problems.