Question

A ball takes 4 seconds to reach groundfrom a tower, what is the height of the tower

Answer 1

hey buddy !! here's your answer ...

t = √2h/g

squaring both sides

16 = 2h /10

h = 16 x 5

h = 80 m✔️

hope it helps !! ❤️❤️

Answer 2

u=0

a=10 m/s

t= 4 s

second eq. of motion - s = ut + 1/2 att

* s = (0) x (4) + 1/2 x (10) x (4) x (4)

    =1/2 x 10 x 16

    =10 x 8

  s=80 m

I HOPE THIS WILL HELP YOU