Question

An aeroplane moving horizontally with velocity 80m/s at a height 122.5

Answer 1

given,

u=80m/s , h= 122.5m, g= 10m/s²

time=√2h/g

      ⇒    √2×122.5/10

      ⇒     4.94s ≈ 5s.

      Range = u× t

                 ⇒ 80×5 = 400m.

Answer 2

Answer:

Explanation:

u=0

a=9.8(gravity of earth)

s=122.5

Step 1 - Find t using the equation s = ut + ½at²

Step 2 - use the equation

Distance = time * velocity. d = v*t to find distance