Respuesta :

aniilsah555

Explanation:

  • Initial velocity(v)=30 m/s
  • Final velocity(u)=0 m/s
  • Acceleration due to gravity(g)=9.8m/s²
  • Height(h)=?

Now,

By the third equation of motion, we have

  • v²=u²+2gh
  • 30²=0²+2×9.8×h
  • 900=0+19.6h
  • 900=19.6h
  • 900/19.6=h
  • h=45.918 m