Question

a stone is dropped from the height of 10 M how long will it take to reach the ground what will be its speed when it hits the ground

Answer 1

the speed of stone is 50km /h

Answer 2

v=?

u=0 m/s

h=10 m

g=9.8m/s2

Usimg newton 3rd law of motion

v2=u2+2gh

v2-u2=2gh

v2-(0)2=2×9.8×10

v2=196

v=14m/s