Question

A bus decrease its speed from 80kmh^-1 to 60 kmh^-1 in 5 sec. find the acceleration of the bus.
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Answer 1

Answer:

-4km/h-²

Explanation:

WE KNOW THAT ACCELERATION = Change in Velocity/ Time

GIVEN VALUES ARE:-

FINAL VELOCITY= 60 KM/h‐¹

INITIAL VELOCITY - 80 KM/h‐1

TIME TAKEN = 5 SECONDS

THEN,

FINAL VELOCITY - INITIAL VELOCITY/ TIME TAKEN = ACCELERATION

60 - 80 / 5 = ACCELERATION(A)

-20/5 = ACCELERATION (A)

-4Km/h-² = ACCELERATION (A)

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