A car is initially traveling at a speed of 18 meters per second. After merging onto a highway, it increases its velocity by 6 meters per second every second for a duration of 2.0 seconds. Following this acceleration, the car maintains this new speed. What is the car's velocity while on the highway?
30.0 m/s
12.0 m/s
26,0 m/s
3.0 m/s
To find the car's velocity on the highway, we need to determine how much the velocity increases during the two seconds of acceleration.
The car increases its velocity by 6 m/s every second for a duration of 2.0 seconds.
Therefore, the total increase in velocity during the acceleration period is 6 m/s * 2 seconds = 12 m/s.
The initial velocity of the car is 18 m/s.
Thus, the car's velocity on the highway is 18 m/s + 12 m/s = 30 m/s.
Therefore, the correct answer is 30.0 m/s.