A person throws a baseball from height of 7 feet with an initial vertical velocity of 50 feet per second. Use the vertical motion model, h = -16t2 + v … t +s, where y is the initial velocity in feet per second and s is the height in feet, to calculate the amount of time the baseball is in the air before it hits the ground.

t = 3.25 seconds.

Explanation:

A person throws a baseball from a height of 7 feet with an initial vertical velocity of 50 feet per second is given by :

We need to find the amount of time the baseball is in the air before it hits the ground. ATQ,

h = 0

Neglecting negative value, t = 3.25 s

So, the baseball will hit the ground at t = 3.25 seconds.