Solve the Problem $s = 2 t ^ { 2 } - 3 t$

question 19

Multiple Choice

Solve the problem. Give the answer to the nearest tenth.
-The position of an object moving in a straight line is given by $s = 2 t ^ { 2 } - 3 t$ , where s is in meters and $t$ is the time in seconds the object has been in motion. How long (to the nearest tenth) will it take the object to move 9 meters?

• A) \(3.0 \mathrm { sec }\)
• B) \(13.5 \mathrm { sec }\)
• C) \(10.0 \mathrm { sec }\)
• D) \(2.8 \mathrm { sec }\)

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