Understanding Acceleration
Acceleration is the rate of change of velocity over time. Mathematically:
* Acceleration (a) = (Change in Velocity (Δv)) / (Change in Time (Δt))
Units
* Velocity (v): km/hr
* Time (t): hours
Calculating the Unit of Acceleration
Substitute the units into the formula:
* a = (km/hr) / (hr)
To simplify, remember that dividing by a fraction is the same as multiplying by its inverse:
* a = (km/hr) * (1/hr)
This gives us the unit of acceleration:
* a = km/hr²
Therefore, the unit of acceleration is kilometers per hour squared (km/hr²) when velocity is measured in kilometers per hour and time is measured in hours.