- #1

HappyFlower

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## Homework Statement

When a soccer ball is kicked toward a player and the player deflects the ball by "heading" it, the acceleration of the head during the collision can be significant. Figure 2-38 gives the measured acceleration a(t) of a soccer player's head for a bare head and a helmeted head, starting from rest. At time t = 7 .0 ms, what is the difference in the speed acquired by the bare head and the speed acquired by the helmetedhead?

## Homework Equations

## The Attempt at a Solution

I uploaded the picture of the graph and question also I was able to get an answer. I found the peak of the helmet graph to be 80 m/s^2 and .006s. I found the other peak from the bare graph to be 200 m/s^2 and .006s.

I multiplied 80 m/s^2 * .006s=.48 m/s and 200 m/s^2 *.006s =1.2 m/s

1.2 m/s- .48 m/s =.57 m/s

the answer of the problem is .56 m/s, I was wondering if I did the problem the right way?

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