Calculating speed

1Calculate the average speed, in m/s, of the following:

aa rabbit that runs 12 metres in 4 seconds

ba dog that runs 20 metres in 8 seconds

can athlete who runs 800 metres in 2 minutes 40 seconds.

2At the school sports day, Mark runs the 100 metre race in 10 seconds, while James runs the 200 metre race in 25 seconds. Who was faster?

3Calculate the average speed of each train in the table below. Which one is travelling the fastest?

train A / train B / train C
journey / from London to Liverpool / from Leeds to London / from Reading to London
distance / 240 km / 200 km / 60 km
time taken / 3 hours / 2 hours / 1.5 hours

4A plane travels from Vienna to London, a distance of 800 km, in 75 minutes. Calculate the average speed of the plane in km/h.

Calculating speed

1Calculate the average speed, in m/s, of the following:

aa rabbit that runs 12 metres in 4 seconds

ba dog that runs 20 metres in 8 seconds

can athlete who runs 800 metres in 2 minutes 40 seconds.

2At the school sports day, Mark runs the 100 metre race in 10 seconds, while James runs the 200 metre race in 25 seconds. Who was faster?

3Calculate the average speed of each train in the table below. Which one is travelling the fastest?

train A / train B / train C
journey / from London to Liverpool / from Leeds to London / from Reading to London
distance / 240 km / 200 km / 60 km
time taken / 3 hours / 2 hours / 1.5 hours

4A plane travels from Vienna to London, a distance of 800 km, in 75 minutes. Calculate the average speed of the plane in km/h.