Question

a stone falling freely from the top of atower cover half the height of the tower during last second of it's freefall
1-Total time of fall of stone
2-height of tower
3-velocity of striking the stone on the ground​

Answer 1

Answer:

height,y/2=ut +1/2at square

-y/2=0-1/2 g(t-1) sq.

y=g(t sq.+1-2t)

Explanation:

time, -y=0- 1/2g t sq.

T=2y/g

=2g(t sq.+1-2t )/g

=2(t sq.+1- 2t )