In a uniformly accelerated motion, the speed varies from 0 to 20 m/s in 4 s. What is the average speed during the motion?
A. 10 m/s
B. 20 m/s
C. 0 m/s
D. 15 m/s
Answer:A
In a uniformly accelerated motion, the speed varies from 0 to 20 m/s in 4 s. What is the average speed during the motion?
A. 10 m/s B. 20 m/s C. 0 m/s D. 15 m/s