A car accelerates uniformly from rest to a speed of 72km/h in8.0 s Find the acceleration of the car?

To find the acceleration of the car, we can use the formula:

acceleration = (final velocity - initial velocity) / time

Given:
Initial velocity (u) = 0 km/h (since the car starts from rest)
Final velocity (v) = 72 km/h
Time (t) = 8.0 s

Converting the velocities to m/s:
Initial velocity (u) = 0 km/h = 0 m/s
Final velocity (v) = 72 km/h = 20 m/s (1 km/h = 1000 m/3600 s = 5/18 m/s)

Using the formula:
acceleration = (20 m/s - 0 m/s) / 8.0 s
acceleration = 20 m/s / 8.0 s
acceleration = 2.5 m/s²

Therefore, the acceleration of the car is 2.5 m/s².

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