Q. 14. A stone is released from the top of a tower of height Calculate its final velocity just before touching the ground.
Initial velocity u = 0
Acceleration, a = g = 9.8 m s-2
Distance travelled, s = 19.6 m
Let the final velocity be v
According to the third equation of motion
Its final velocity just before touching the ground will be 19.6 m s-1.