Consider a car that travels halfway around a circle of radius 30 m in a time of 4.5 s at a constant speed. The initial velocity is in the –x direction and the final velocity is in the +x direction. What is the magnitude of the average velocity during these 4.5 s?
A. 0 m/s.
B. 6.7 m/s.
C. 13 m/s.
D. 21 m/s.
Answer:C
Consider a car that travels halfway around a circle of radius 30 m in a time of 4.5 s at a constant speed. The initial velocity is in the –x direction and the final velocity is in the +x direction. What is the magnitude of the average velocity during these 4.5 s?
A. 0 m/s. B. 6.7 m/s. C. 13 m/s. D. 21 m/s.