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?
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)?
7. From the graph it looks like in total the amount of time it took for the player to reach the base was 4.5 seconds, so to find the average speed divide 90 by 4.5 to get 20f/s
8. The difference between the two speeds is -52km/h. Convert this into m/s by multiplying km by 1000/3600 to get -14.44m/s. Divide this by 6 to get the average acceleration which is about -2.41m/s^2
Hope this helps
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