SOLUTION: The functions(t)=16t^2 models the distance, s(t), in feet that an object falls in t seconds. Use this function and the square root property to solve the following exercise. Express

Algebra ->  Square-cubic-other-roots -> SOLUTION: The functions(t)=16t^2 models the distance, s(t), in feet that an object falls in t seconds. Use this function and the square root property to solve the following exercise. Express      Log On


   

Question 757125: The functions(t)=16t^2 models the distance, s(t), in feet that an object falls in t seconds. Use this function and the square root property to solve the following exercise. Express answer in simplified form. Then use a calculator to find a decimal approximation to the nearest tenth of a second.
A skydiver jumps from an airplane and falls for 4800 feet before opening a parachute. For how many seconds was a skydiver in a free fall?
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The functions(t)=16t^2 models the distance, s(t), in feet that an object falls in t seconds. Use this function and the square root property to solve the following exercise. Express answer in simplified form. Then use a calculator to find a decimal approximation to the nearest tenth of a second.
A skydiver jumps from an airplane and falls for 4800 feet before opening a parachute. For how many seconds was a skydiver in a free fall?
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16t^2 = 4800
Solve for t