A car is traveling down the road at 25 m/s,and then increases their speed to 45 m/s in 5 seconds. What is this car's acceleration?
(45-25)m/s / 5s = 20/9 m/s^2
Oops: 20/5 = 4, not 20/9
No idea how I made that boo-boo!
ypo
To find the acceleration of the car, we need to use the formula for acceleration, which is:
Acceleration (a) = (Change in velocity) / (Change in time)
In this case, the change in velocity is the difference between the car's final velocity and initial velocity. The change in time is the time it takes for this change to occur.
Given:
Initial velocity (u) = 25 m/s
Final velocity (v) = 45 m/s
Change in time (Δt) = 5 seconds
Using the formula, we can calculate the acceleration:
a = (v - u) / Δt
a = (45 - 25) / 5
a = 20 / 5
a = 4 m/s²
Therefore, the car's acceleration is 4 m/s².