Question

Manu runs at a speed of 2 m/s in a 5 km/hr. How much time will she take to complete the race

Answer 1

Distance = Time * speed
Convert all units into Km/hr

Answer 2

Given,

• speed, s = 2m/s
• Distance covered, d= 5km

To Find,

• Total time taken to complete the race, t

Solution,

According to the question have to calculate the total time taken by manu to complete the race

conversion of Distance into metres :

• 1km = 1000m
• 5km = 1000 × 5 = 5000m

Now let's calculate the time taken

$→ speed = distance / time$

substitute the value we get

--» 2 = 5000/t

--» 2 × t = 5000

--» t = 5000/2

--» t = 2500s

--› he takes 2500s to complete the Race