1mile = 1610mCalculate the acceleration of a school minibus which can accelerate from rest to 40mph in 18s.

Sure, here's how you can calculate the acceleration:

Step 1: Convert the speed from miles per hour (mph) to meters per second (m/s) because the standard unit of acceleration is m/s².

1 mile = 1610 meters 1 hour = 3600 seconds

So, 40 mph = 40 miles/hour * (1610 meters/1 mile) * (1 hour/3600 seconds) = 17.88 m/s (approximately)

Step 2: Use the formula for acceleration, which is change in velocity divided by time. In this case, the minibus is accelerating from rest to 40 mph, so the change in velocity is 17.88 m/s. The time taken for this change is 18 seconds.

Acceleration = Change in velocity / Time Acceleration = 17.88 m/s / 18 s = 0.993 m/s² (approximately)

So, the acceleration of the school minibus is approximately 0.993 m/s².