Question

A car travels at a speed of 250km/hr after 3 min .It's velocity changes to 180 km/hr . Calculate the acceleration.​

Answer 1

Answer:

Given : Initial velocity = 250km/h

Or in m/s = 250×18/5

= 50×18

= 600m/s

Final velocity = 180km/h

or in m/s

= 180×18/5

= 36×18

= 648m/s

Time 3min

or in second = 3×60

= 180second

Acceleration = v-u/t

= 648-600/180

= 48/180

= 0.267m/s.sq