Question

please answers this question...​

Answer 1

Step-by-step explanation:

Initial velocity (u) = 40m/s

Accelaration (g) = 10m/s^2

Height (h) = ?

Third eq of motion

2gh = v^2 - u^2

2gh = -u^2

2x10xh = ( -40^2)

20 x h = 1600

h = 1600 / 20

h = 80m

Displacement = 0m

Total distance = 2h

= 2 * 80

= 160m