Answer: 38m/s
Step-by-step explanation:
To find the final speed of the car, we can use the equation for uniformly accelerated motion:
final speed = initial speed + (acceleration * time)
Given:
Initial speed (u) = 8.0 m/s
Acceleration (a) = 2.5 m/s²
Time (t) = 12 s
Plugging in the values:
final speed = 8.0 m/s + (2.5 m/s² * 12 s)
Calculating:
final speed = 8.0 m/s + 30 m/s
Final speed = 38 m/s
Therefore, the final speed of the car after 12 seconds of uniform acceleration at a rate of 2.5 m/s² is 38 m/s.
I hope this helps :)