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Algebra
Question

A soccer ball is kicked straight up from the groun...

A soccer ball is kicked straight up from the ground with an initial velocity of \( 32 \) feet per second, then its height above the earth in feet is given by \( h ( t ) = - 16 t ^ { 2 } + 32 t \) , where \( t \) is time in seconds. 

 

Determine how much time is needed for the ball to return to the ground. 

 

Select one: 

a. \( 0.79 \) second 

b. \( 2.31 \) seconds 

c. \( 1.55 \) seconds 

d. \( 2.00 \) seconds 

e. \( 1.25 \) seconds 

Answer

d. 

Solution
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