Marta throws a baseball with an initial upward velocity of 60 feet per second. Ignoring Marta's height, how long after she releases the ball will it hit the ground?

Time, t = 3.75 seconds

Step-by-step explanation:

Given that,

The initial speed of the baseball, u = 60 ft/s

We need to find the how long after she releases the ball will it hit the ground.

The height of an object as a function of time is given by the following equation as :

Here h(t) is height in feet

t is in seconds

is initial height

In this case, the height as a function of time is given by :

When the ball hits the ground, h(t) = 0

So, the ball will hit the ground at 3.75 seconds. Hence, this is the required solution.