Calculating Speed

Front

A runner races in the 100 meter dash. It takes her 10 seconds to finish. What is her average speed?

Back

10 m/s

Front

Total distance divided by total time is

Back

average speed

Front

Alan travels 100 km in 5hrs. Find his average speed in km/h.

Back

20 km/hr

Front

Find speed when distance is 142 km and time is 2 hours.

Back

71 km/hr

Front

What is the speed of an object that travels 60 meters in 4 seconds?

Back

15 m/s

Front

What two measurements are necessary for calculating speed?

Back

Distance and time

Front

Can be measured in meters per second (m/s)

Back

Speed

Front

Equation to calculate speed

Back

distance/time

Front

A ball rolls 144 cm in 12 sec. What is its speed in meters per second?

Back

0.12 m/s

Front

A girl on a bike rides down a hill 500 meters long in 50 seconds. What is her speed?

Back

10 m/s