Question

the velocity of a moving body increases from 10m/s to15M/s in5seconds calculate acceleration

Answer 1

acceleration =v-u/t
15-10/5
5/5
acceleration = 1

Answer 2

intial velocity= 10m/s
final velocity = 15m/s
acceleration = velocity/time
                    = (15 + 10) / 5
                     = 25/5
                     = 5m/s