If a Rocket Is Propelled Upward from Ground Level, Its $h ( t ) = - 9.8 t ^ { 2 } + 49 t$

question 65

Multiple Choice

If a rocket is propelled upward from ground level, its height in meters after t seconds is given by $h ( t ) = - 9.8 t ^ { 2 } + 49 t$
During what interval of time will the rocket be higher than 58.8m ?

• A) 3<t<4
• B) 4<t<5
• C) 0<t<2
• D) 2<t<3

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