Question

A stone is dropped from a height of 2 metre from the surface of the earth.
1) what will be its speed just before it hits the ground?
2) how much time would it take to reach the ground?

Answer 1

Explanation:

here is your answer...

Answer 2

Answer:

Initial velocity = 0, h= 2m, g=10 m/s² final velocity =?

v²-u²=2gh

v²-(0)²=2*10*2

v²=40

v=

$\sqrt{40}$

v=6.32

v²=u+gt

6.32=0 + 10*t

6.32=10t

632/100

0.6s