Question

bus decreases its speed from 80 km per hour to 60 km per hour in 5 second find the acceleration of the bus

urgenttt and answer ​

Answer 1

ANSWER = -1111.2m/s^2

Explanation »

›Initial velocity of bus = 80km/h

›Final velocity of bus = 60km/h

›Time taken to decrease speed = 5sec

TO FIND

Acceleration of the bus

Conversations

u= 80km/h in m/s

= 80 x 1000

= 80000 km in m/s

= 80000 x 5/18

= 22222.2 m/s

v= 60 km/h in m/s

= 60 x 1000

= 60000 km in m/s

= 60000 x 5/18

= 16666.6m/s

Acceleration of bus = v-u/t

= {22222.2-16666.6/5}m/s^2

= -1111.12m/s^2

NOTE : -ve sing for retading u > v