A car traveling at 4.0 m/s has a constant acceleration of 2.0 m/s².After 3.0 seconds,the average velocity during the acceleration is A) 5.0 m/s. B) 7.0 m/s. C) 9.0 m/s. D) 11 m/s. E) 13.

Question

Quizplus · Accepted Answer

Using the formula for average velocity with constant acceleration:

average velocity = (final velocity + initial velocity)/2

We know the initial velocity (4.0 m/s), the acceleration (2.0 m/s^2), and the time (3.0 seconds).

Using the kinematic equation:

final velocity = initial velocity + acceleration*time

final velocity = 4.0 m/s + 2.0 m/s^2 * 3.0 s

final velocity = 10 m/s

Now we can plug in the values to find the average velocity:

average velocity = (10 m/s + 4.0 m/s)/2

average velocity = 7.0 m/s

Therefore, the answer is B.

A Car Traveling at 4