Question

A car increases its speed from 20km/hr to 50km/hr in 10 seconds find its acceleration?

Answer 1

Initial velocity=20 km/hr

=50/9m/s

Final velocity=50km/hr

=125/9m/s

Time =10 second

a =(v-u)/t

=(125/9-50/9)/10

=5/6

=0.8333m/s^2