Question

a bus decreases its speed from 80km h-1 to 60km h-1 in 5sec .find the accerlation of the bus.
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Answer 1

a=(v-u)÷t

a=(80-60)÷5/3600

$a = \frac{ - 20 \times 3600}{5} \\ = - 14400km {h}^{ - 1}$

Answer 2

i hope this will help you