Question

A juggler is performing an act by juggling several balls. The juggler throws the balls up at an initial height of 3.9 feet with a speed of 14.8 feet per second. If the juggler did not catch a ball, about how long will it take the ball to hit the floor?

Answer 1

It will hit the floor when h=0

-16t^2+14.8t+3.9=0

using the quadratic formula...

t=(-14.8±√468.64)/-32, since t>0

t ≈ 1.139 seconds