To calculate speed, you generally use the following formula:
Speed
=
Distance
Time
Speed=
Time
Distance
Where:
Speed is the rate at which an object moves.
Distance is how far the object travels.
Time is how long it takes the object to travel that distance.
Examples:
If you travel 100 meters in 20 seconds, the speed would be:
Speed
=
100
meters
20
seconds
=
5
m/s
Speed=
20seconds
100meters
=5m/s
If a car travels 150 kilometers in 3 hours, the speed would be:
Speed
=
150
km
3
hours
=
50
km/h
Speed=
3hours
150km
=50km/h
1. A person walks 12 kilometers in 3 hours. What is the walking speed?
2. A bus travels 500 kilometers in 10 hours. What is its speed?
3. A plane covers 1,200 kilometers in 2 hours. What is its speed?
4. A car covers a distance of 45 meters in 3 seconds. What is its speed?
5. A train travels 900 kilometers in 15 hours. What is the speed of the train?