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litzkrieg
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(a) Suppose that a NASCAR race car is moving to the right with a constant velocity of +81 m/s. What is the average acceleration of the car? (b) Twelve seconds later, the car is halfway around the track and traveling in the opposite direction with the same speed. What is the average acceleration of the car?
To me they should equal:
a) A=0 m/s^2
b) A=-0 m/s^2
It ha been awhile since i took AP physics in high school, but to my understanding a "Constant Velocity" means neither positive or negative acceleration right? I know V=Change in Distance/ change in time and Acceleration=change in velocity/changine in time but it keeps telling me I am wrong...can someone tell me what I am missing?
Thank you
To me they should equal:
a) A=0 m/s^2
b) A=-0 m/s^2
It ha been awhile since i took AP physics in high school, but to my understanding a "Constant Velocity" means neither positive or negative acceleration right? I know V=Change in Distance/ change in time and Acceleration=change in velocity/changine in time but it keeps telling me I am wrong...can someone tell me what I am missing?
Thank you