Aball is thrown directly up in the air from a height of 5 feet with an initial velocity of 60 ft/s. ignoring air resistance, how long until the ball hits the ground? use the formula where h is the height of the ball in feet and t is the time in seconds since it is thrown. round your answer to the nearest tenth.

3.8 seconds

Step-by-step explanation:

Given equation

When the ball hits the ground then height is 0

So we replace h with 0 and solve for t

a= -16 , b= 60 and c= 5

Apply quadratic formula to solve for t

=

Now make two fractions and solve for x

t= =-0.0815

t= =3.83

So answer is 3.8 seconds

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