Question

elizabeth attempts a feid goal by kicking a football from the ground with an intial vertical velocity of 64 ft/s. how long will the football be in the air?

2s
4s
6s
8s

Answer 1

you'd use the kinematics equation

-(1/2)at^2 + v_0 * t + h = 0

and solve for t

where a is the acceleration due to gravity in feet
v_0 is the initial velocity
and h is initial height

this will give you the time it takes to reach the peak (halfway) so once you have t you will need to double it to get the correct solution