Asked by Victoria
The height of a soccer ball kicked from the ground can be approximated by the function h = =16t^2 + 64t, where he is the height in feet and t is the time in seconds. Find the time it takes for the ball to return to the ground.
A: It takes the ball 2 seconds to return to the ground.
A: It takes the ball 2 seconds to return to the ground.
Answers
Answered by
Henry
V = Vo + g*Tr = 0
Tr = (V-Vo)/g = (0-64)/-32 = 2 s. = Rise
time.
Tf = Tr = 2 s. = Fall time.
Tr+Tf = 2 + 2 = 4 s. = Time it takes to
return to gnd.
Tr = (V-Vo)/g = (0-64)/-32 = 2 s. = Rise
time.
Tf = Tr = 2 s. = Fall time.
Tr+Tf = 2 + 2 = 4 s. = Time it takes to
return to gnd.
Answered by
cashmere
A football is kicked toward the goal. The height of the ball is modeled by the function h(t) = −16t2 + 64t where t equals the time in seconds and h(t) represents the height of the ball at time t seconds. What is the axis of symmetry, and what does it represent? (2 points)
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