In the hare-tortoise race,the hare ran for 2 minutes at a speed of 7.5km/hour,slept for 56 minutes and again ran for 2 minutes at a speed of 7.5 km/hour.Find the average speed of the hare
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Answer:
Distance travelled in the first 2 min
= speed × time
= 7.5 kmph × (2/60)
= 15/60 km
Distance travelled in next 56 min
= 0 km as he was sleeping
Again distance in last 2 min
= 7.5 mph × (2/60 hr)
= 15/60 km
So, total distance travelled = (15+0+15)/60
= 30/60 km
= 0.5 km
total time taken = 2+56+2 min = 60
= 1 hr
So, as average speed
= total distance travelled/ total time taken
So V avg = 0.5 km/hr
= 0.5 km/hr is the average speed of the hare.
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