Question

an object released from a height undergoes unifrom acceleration of 10m/s and attains final velocity of 28m/s before touching the ground. what is its average velocity

Answer 1

u = 0m/s

v = 28m/s

a = 20m/s²

a = v-u/t

20 = 28-0/t

20 = 28/t

t = 28/20

t = 1.4s

Average Velocity = v+u/t

=> 28+0/1.4

=>28/1.4

=>20m/s

Average Velocity = 20m/s

Cheers!

Answer 2

hope it helps.........