Solve the Problem $$h = \frac { 1 } { 2 } g t ^ { 2 } + v _ { o } t + h _ { o }.$$

question 22

Multiple Choice

Solve the problem.
-An object is thrown upward from the top of a 160-foot building with an initial velocity of 48 feet per second. How long after the object is projected upward will it strike the ground? Use the equation $$h = \frac { 1 } { 2 } g t ^ { 2 } + v _ { o } t + h _ { o }.$$

• A)-2 sec
• B)5 sec
• C)160 sec
• D)2 sec

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