Question

suppose decreases its speed from 80 kilometre hour per hour to 50 kilometre per hour in 4 seconds find the acceleration of bus​

Answer 1

Answer:

7.5 m/s

Explanation:

HERE YOUR ANSWER ...

A bus decreases it's speed so the final velocity ( v ) = 80 km / hr and the initial velocity ( u ) = 50 km/hr ... and time is 4 second

put the accelerate formula

a= v - u / t

a= 80 - 50 / 4

a= 30 / 4

a= 7.5 km/ hr.

then change into m/s

a = 7.5 / 1000

a = 0.0075 or 3/400

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