Question

James drops a water balloon from a height of 45cm. How long will it take the water balloon to hit the ground? Use the formula h(t) =–5.2t^2+v0t+hn

Answer 1

It will take 2.94 seconds to hit the ground.

All we need to do is input 0 for the height and 45 for h(0) and solve the equation.

0 = -5.2x^2 + 45
-45 = -5.25x^2
8.65 = x^2
2.94 = x

It will hit the ground after 2.94 seconds.