Question

A car requires velocity of 36 km /h in 10 sec just after the start . It takes 20 sec to stop . Calculate the acceleration in both the cases

Answer 1

start: a = v/t = 36km/hr/10s = 3.6 km/hr/s

you can convert km/hr to m/s if you desire the usual m/s^2 value.

to stop takes twice as long, so a = 1/2 as much.

Answer 2

Thank you Steve