Practice Average Speed in Physics

Use these practice problems to test your method after reviewing the concept explanation and worked examples.

Quick Recap

Average speed is the total distance traveled divided by the total time taken.

It tells you how fast the trip was overall, not how fast you moved at each moment.

Showing a random 20 of 50 problems.

Example 1

medium
A bus travels 30 min at 60 km/h and 30 min at 20 km/h. Average speed?

Example 2

easy
A runner covers 5 km in 25 min. Average speed in km/min?

Example 3

easy
A cyclist's average speed is 15 km/h over 2 h. How far did she ride?

Example 4

medium
A car covers three 20 km legs at 40, 60, 120 km/h. Find the average speed.

Example 5

challenge
A car travels half the distance at 30 km/h and the other half at 70 km/h. Find the average speed.

Example 6

easy
A train travels 240 km in 4 h. What is its average speed?

Example 7

challenge
A commuter drives to work at 30 km/h and back the same route at 60 km/h. What single constant speed gives the same total time?

Example 8

easy
A car drives a circular track of length 400 m once in 50 s and returns to the start. Find the average speed.

Example 9

easy
A walker goes 30 m in 15 s. Average speed?

Example 10

easy
A cyclist's total distance is 24 km over 2 h. Average speed?

Example 11

medium
A jogger runs 3 km in 20 min. Average speed in km/h?

Example 12

easy
A round trip covers 400 m of path in 100 s but ends at the start. Average speed?

Example 13

medium
A car drives 60 km at 30 km/h, 60 km at 60 km/h, and 60 km at 90 km/h. Find the average speed.

Example 14

medium
A bus drives 40 min at 30 km/h, then 20 min at 60 km/h. Find the average speed.

Example 15

medium
A jogger runs 5 km in 25 min. Find her average speed in km/h.

Example 16

medium
A car goes around a 1 km track in 90 s. Find the average speed in m/s.

Example 17

medium
A runner does 400 m in 80 s and then walks 200 m in 120 s. Find the average speed for both segments together.

Example 18

easy
A swimmer averages 1.2 m/s over 300 m. Find the time.

Example 19

hard
A car drives 1 h at 80 km/h, 2 h at 50 km/h, and 1 h at 30 km/h. Find the average speed.

Example 20

easy
A trip is 60 km in 1.5 h. Average speed in km/h?