Question

an object dropped from cliff falls with a constant acceleration of 10m/s2 find its speed after 2s after it was dropprd

Answer 1

Given :

u = 0 m/s

a = 10 m/s^2

t = 2 s

To find : v after 2s

Solution :

As v = u + a t

so, v = 0 + 10×2 = 20 m/s

So, after 2s of dropping it will have speed of 20 m/s.