A car’s velocity decreases at a constant rate from 22.0m/s to 10.0m/s over a period of 3.0s.
–What is the car’s average acceleration?
To find the car's average acceleration, we will use the formula:
average acceleration = (change in velocity) / (change in time)
Given that the velocity decreases from 22.0 m/s to 10.0 m/s over a period of 3.0 seconds, we can calculate the change in velocity:
change in velocity = final velocity - initial velocity
= 10.0 m/s - 22.0 m/s
= -12.0 m/s
Next, we can calculate the change in time, which is given as 3.0 seconds.
change in time = 3.0 s
Using these values, we can calculate the average acceleration:
average acceleration = (-12.0 m/s) / (3.0 s)
= -4.0 m/s²
Therefore, the car's average acceleration is -4.0 m/s². The negative sign indicates that the car is decelerating or slowing down.
Now I have done several of these. You try.
a = dv/dt