An automobile with an initial speed of 4.56
m/s accelerates uniformly at the rate of 2.4
m/s2.
Find the final speed of the car after 4.4 s.
Answer in units of m/s
To calculate the final speed of the car, we can use the formula:
final speed = initial speed + (acceleration × time)
Given:
Initial speed (u) = 4.56 m/s
Acceleration (a) = 2.4 m/s²
Time (t) = 4.4 s
Substituting these values into the formula, we have:
final speed = 4.56 m/s + (2.4 m/s² × 4.4 s)
To calculate the final speed, simply multiply the acceleration by the time and add that to the initial speed:
final speed = 4.56 m/s + (2.4 m/s² × 4.4 s)
final speed = 4.56 m/s + 10.56 m/s
final speed = 15.12 m/s
Therefore, the final speed of the car after 4.4 s is 15.12 m/s.