ICS3U+-+Last+Lap+Exercise

LAST Lap

A woman runs on tracks of different lengths each day. She always times the last lap. Use the time for the last lap (in seconds) and the length of the track (in kilometres) to calculate her speed in kilometres per hour.

Include at least one decimal place if answer is not integer.

Example 1 She runs a half kilometres track and her last lap took 180 sec. So, the length is 0.5 kilometres and time is 180 sec (3 minutes). So her speed is 10 kilometres per hour.

Example 2 Length = 1 kilometre Time = 270 sec Answer: speed is 13.33 kilometres per hour