Question

A ball is dropped from the height of 10m, find its velocity when it reaches the ground?

Answer 1

h = 10m

we know that

h = u^2/2g

10 = u^2/2*10

u^2 = 100/2

u^2 = 50

u= square root(50)

u = 5root 2

u = 5*1.414                        (since root 2 = 1.414)

u = 7.07 meter per second