A Model Rocket Is Launched Upward with an Initial Velocity

question 35

Multiple Choice

A model rocket is launched upward with an initial velocity of 170 feet per second. The height, in feet, of the rocket t seconds after the launch is given by . How many seconds after the launch will the rocket be 450 feet above the ground? Round to the nearest tenth of a second.

• A)5.0 seconds and 5.6 seconds
• B)5.0 seconds and 11.3 seconds
• C)5.1 seconds and 11.3 seconds
• D)5.1 seconds and 5.6 seconds
• E)5.0 seconds and 5.1 seconds

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