a car that was initially moving at 25 m/s is accerlerated at 4.0 m/s^2 for 5.0 s. the final speed of the car is?
To find the final speed of the car, we can use the equation of motion:
final speed = initial speed + (acceleration × time)
Given:
Initial speed (u) = 25 m/s
Acceleration (a) = 4.0 m/s^2
Time (t) = 5.0 s
Plugging the values into the equation, we get:
final speed = 25 m/s + (4.0 m/s^2 × 5.0 s)
Now, let's calculate:
final speed = 25 m/s + (20.0 m/s)
final speed = 45.0 m/s
Therefore, the final speed of the car is 45.0 m/s.