Question

A car starts moving with 20m/s and its velocity becomes 80m/s after 6 seconds.calculate its acceleration.

Answer 1

final - initial velocity / time
so 80-20/6
= 10m/s

Answer 2

Initial Velocity=20m/s

final velocity=80m/s

Time=6 secs

Therefore, Applying V=u+at

so,80=20+a*6

80=20+6a

80-20=6a

60=6a

60/6=a

So Acceleration is 10m/s square.

Thanks ! hope It helps .