Question

A bus decreases its speed from 80 kilometres to 60 km in 5 seconds find the acceleration of the bus

Answer 1

Answer:

-20/18 m/sec^^2

Explanation

here the initial velocity of the bus is = 80 km/h = 200/9 m/sec (given)

& final velocity = 60 km/h = 100/6 m/sec (given)

time in which it changes its speed = 5 sec (given)

therefore,

we know that, acceleration(a) = final velocity(v) - initial velocity(u)/time(t)

a= 100/6 - 200/9 /5

a= -100/18*5

a= -20/18 m/sec^^2

a