Question

a bus decreases its speed from 80 kilometre per hour to 60 km per hour find its acceleration​

Answer 1

Answer:

-10 km/h

Explanation:

we know,

Acceleration=final velocity-Initial velocity/2

a=v-u/2

here final velocity, v=60km/h

initial velocity,u=80km/h

a=60-80/2

a= -20/2

a= -10km/h

Answer 2

Answer:

ACCELERATION=

INITIAL VELOCITY- FINAL VELOCITY

INITIAL VELOCITY- FINAL VELOCITY 2

a =?

Initial velocity, v = 80 km/h

Final velocity , u = 60 km/h

a= 80-60 = 20 = 10 km/h

2 2