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What is the calculated acceleration

publish date2022/05/09 02:55:00 GMT+10

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If a car speeds up from 50 km/h to 80 km/h in 10 seconds.  What is its acceleration?

2 km/h per second
3 km/h per second
3 km/h
5 km/h per second

Correct Answer

3 km/h per second

Explanation

 acceleration = (80 - 50) / 10 = 3 km/h per second

Reference

Basic Physics: A Self-Teaching Guide


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