runner moving at a velocity of 6 m/s increases the velocity in a 2 s time interval to a rate of 10 m/s. What is the rate of acceleration?   a. 4 m/s^2 b. -4 m/s^2 c. -2m/s^2 d. 2 m/s^2

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Chapter2: Kinematics
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Problem 28PE: A powerful motorcycle can accelerate from rest to 26.8 m/s (100 km/h) in only 3.90 s. (a) What is...
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28. A runner moving at a velocity of 6 m/s increases the velocity in a 2 s time interval to a rate of 10 m/s. What is the rate of acceleration?
 
a. 4 m/s^2
b. -4 m/s^2
c. -2m/s^2
d. 2 m/s^2
 
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