Question

A bus decreases its speed from 80kmh-1 to 50kmh-1 in 4s.find the acceleration of the bus​

Answer 1

Answer:

the acceleration=30km/h

Explanation:

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Answer 2

Answer:

GIVEN

A bus decreases its speed from 80km/h to 50km/h in 4 seconds

Required to find

find the acceleration of the bus

Solution-

Acceleration = $\sf \frac{Change ~in~velocity}{time}$

$\sf \: = \frac{(50 - 80) \times \frac{5}{18 \: }m/ s }{4 \: sec} \\ \\ \sf \: = \: - 2.08m/s {}^{2}$

hence , Accelerations is -2.08m/s² so it can be called as retardation.