A turtoise moves a distance of 100 metres in 15 minutes. What is the average speed of the tortoise in km/h

0.4 km/h

Explanation:

Speed is defined as distance moved per unit time and can be expressed in either m/s or Km/h or miles/h

Mathematically,

where d represent distance covered and t is time taken

Taking d as 100 m and converting it into km, we divide by 1000 hence d= 0.1 km

Time is 15 minutes and to convert to hours we divide by 60 hence 0.25 hours

Speed,

Therefore, the speed is equivalent to 0.4 km/h

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