Question

A sprinter runs 100 m in 10 s. Calculate his average speed in m/s and km/h.​

Answer 1

Average speed=

Total time taken

Total distance traveled

⇒Av.speed=

10

100

=10m/s

or, Av.speed=10×

1000

3600

km/h=36km/h

Answer 2

Answer:

Answer:-.

Hello army

$average \: speed = \frac{total \: distance}{total \: time \: taken}$

Given:-

✒Distance cover by sprinter runs = 100 m=Distance (d)

✒Time taken = 10 s ( t)

In m/ s

$\frac{d}{t} = \frac{100}{10} = 10 \: metre\: per \: second$

✏10 m/ s

Now in km/ h

1. 100 metres in 10 seconds
2. 600 metres in a minute (100*6)
3. 36,000 metres in an hour (600*60)
4. 36 kilometres in an hour (36,000/1000).

So in km/ h = 36km/h

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borahae army