7. A baseball player runs from home plate to first base, a distance of 90 feet.

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7. A baseball player runs from home plate to first base, a distance of 90 feet.The graph shows the displacement of the player over time. https://tcan4424-oakcliff-ccl.gradpoint.com/Resour...

What is the approximate average speed of the player's run to first base?

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8. Over a span of 6.0 seconds, a car changes its speed from 89 km/h to 37 km/h. What is its average acceleration in meters per second squared (m/s2)?

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May 17th, 2015

7.  90 / 4.7 = 19.15 ft/s

8.  37 - 89 = -52km/h

(-52 km/h)(1000m/km)(1h/3600s) = -14.44 m/s

-14.44/6.0 = -2.41 m/s^2

May 17th, 2015

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