Question

A cheetah travels a distance of 200m in 10 seconds. What is it's speed?
a) m/s b) km/h?​

Answer 1

Answer:

20m/s is the speed

120km/h is the speed

Answer 2

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distance covered by cheetah = 200m

time taken = 10sec

we know that..

$speed \: = \frac{distance}{time} \\ \\ \implies \: s = \frac{200}{10} \\ \\ \implies \: s = 20m {s}^{ - 1}$

a) so speed of cheetah in 20m/s

b) speed of cheetah in km/hr

$s = 20m {s}^{ - 1} \\ \\ \implies \: s = 20 \times \frac{18}{5} km {h}^{ - 1} \\ \\ \implies \: s = 4 \times 18 \: km {h}^{ - 1} \\ \\ \implies \: s = 72 \: km {h}^{ - 1}$

so speed of cheetah is 72 km/hr