Question

A stone falls down from the top of a wall in 1 second to the ground ?(g =10m /s2)
What is the speed of the stone just before it's touches the ground?

Answer 1

Answer:

it's not speed.

u=10

v=0

t=1

acceleration,a = v-u/t

a= 0-10/1

a= -10

Answer 2

Answer:

=5/1=m/s short answer easy