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Using energy considerations, calculate the average force a

Chapter 7, Problem 15

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QUESTION:

Problem 15PE

Using energy considerations, calculate the average force a 60.0-kg sprinter exerts backward on the track to accelerate from 2.00 to 8.00 m/s in a distance of 25.0 m, if he encounters a headwind that exerts an average force of 30.0 N against him.

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QUESTION:

Problem 15PE

Using energy considerations, calculate the average force a 60.0-kg sprinter exerts backward on the track to accelerate from 2.00 to 8.00 m/s in a distance of 25.0 m, if he encounters a headwind that exerts an average force of 30.0 N against him.

ANSWER:

Problem 15PE

Solution 15 PE

Step 1 :

In this question, we need to find average force exerted by sprinter to accelerate

Data given

Mass of sprinter

Initial velocity

Final velocity

distance

Headwind Force

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