A car is stopped at a traffic light. It then travels along astraight road so tha

Question

A car is stopped at a traffic light. It then travels along astraight road so that its distance from the light is given byx(t) = bt2 -ct3, where b = 2.20 m/s2 and c = 0.150 m/s3. (a) Calculate the average velocity of the carfor the time interval t = 0 to t = 10.0 s.


(b) Calculate the instantaneous velocity of the car at thefollowing times:
i) t = 0
ii) t = 5.0 s

iii) t = 10.0 s


(c) How long after starting from rest is the car again atrest?
(a) Calculate the average velocity of the carfor the time interval t = 0 to t = 10.0 s.


(b) Calculate the instantaneous velocity of the car at thefollowing times:
i) t = 0
ii) t = 5.0 s

iii) t = 10.0 s


(c) How long after starting from rest is the car again atrest?

Explanation / Answer

please see the post titled velocity by mctree

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