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Acceleration Practice Problems
Complete the following. Show all work and be sure to label your answers with the
proper units!
1. The speed of a motorcycle increases from 10 km/hr to 50 km/hr in 9 seconds.
What is its acceleration?
2. The speed of a train increases from 100 km/hr to 250 km/hr in 5 minutes. What is
its acceleration?
3. A car is traveling at 15 m/sec. Ten minutes later it is traveling at 70 m/sec. What
is its acceleration?
4. What is the acceleration of a baseball when its speed increases from 1 m/sec to 25
m/sec in 1 second?
5. A plane increases its speed from 450 km/hr to 750 km/hr in 0.30 hour. What is its
acceleration?
ANSWER KEY:
1.
4.4 km/sec/sec or 4.4 km/s2
2. 30 km/hr/hr or 30 km/hr2
3. 5.5 m/sec/min
4. 24 m/sec/sec or 24 m/s2
5. 1000 km/hr/r