Question

A bus decreases its speed from 80 km h -1 260 km h -1 in 5s. The acceleration of the bus​

Answer 1

Answer:

a = 10 m / s²

Explanation:

Let the initial speed be u and the final speed be v.

Let t be the time take for the change in speed.

v = 260 km / hr = 72.2 m / s

u = 80 km / hr = 22.2 m / s

t = 5 secs

W. K. T,

a = ( v - u ) / t       [where a is the acceleration]

a = ( 72.2 - 22.2 ) / 5

a = 50 / 5

a = 10 m / s²

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Answer 2

Answer:

The acceleration of the bus is 10 m/s .  

Explanation:

We first convert the km/h to m/s so that we can use the acceleration formula to solve the problem .