Question

a body is released from the top of a building of height 19.6m find the velocity with lower the body hits the ground (given g= 9.8m/s²)

Answer 1

Explanation:

Using the relation: v = u + a t, we can get the velocity with which it hits the ground. v = 0 + (-9.8) × 2 = -19.6 m/s.