Question

a bus take 2h to cover a distance of 80km calculate its speed in km/h and m/s

Answer 1

S = D/t
S = 80/2 = 40 Km/h

$40 \times \frac{5}{18} \\ = \frac{200}{18} \\ = 11.11 \: m {s}^{ - 1}$
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Answer 2

this is the answer 40 km per hour and 128 m per sec