Coming down pit lane at Daytona, car #24 slows down from 30 m/s to a stop in 15

Question

Coming down pit lane at Daytona, car #24 slows down from 30 m/s to a stop in 15 s, and then accelerates to 60 m/s in 20 s. A) Plot this information on a graph or draw a figure. (Assume the accelerations are constant) B) find the average speed of car #24 over this entire time period. Coming down pit lane at Daytona, car #24 slows down from 30 m/s to a stop in 15 s, and then accelerates to 60 m/s in 20 s. A) Plot this information on a graph or draw a figure. (Assume the accelerations are constant) B) find the average speed of car #24 over this entire time period. Coming down pit lane at Daytona, car #24 slows down from 30 m/s to a stop in 15 s, and then accelerates to 60 m/s in 20 s. A) Plot this information on a graph or draw a figure. (Assume the accelerations are constant) B) find the average speed of car #24 over this entire time period.

Explanation / Answer

Average speed = d/(15s+20s) = 825/35 = 23.57 m/s

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