Answer:
velocity = 89.4 m/s
Height = 180m
Step-by-step explanation:
Using
[tex] {v}^{2} = {u}^{2} + 2gh[/tex]
v=? , u = 0, g = 10m/s^2, h = 400
v^2 = 2 × 10 × 400
v^ 2 = 8000
Take square root of both sides
v = 16√5 = 89.4m/s
Again,
Height = ut + 1/2gt^2 = 0 + 1/2 × 10 × 6^2
= 5 × 36 = 180m
