1. The initial velocity of a rocket shot straight up is \( 40 \) feet/second. The height of the rocket after \( t \) seconds is represented by the equation \( d = 40 t - 5 t ^ { 2 } \) . Find the maximum height of the rocket and the amount of time the rocket is in the air. Maximum height \( = \) Total time in the air \( = \)
Pregunta
Answer
maximum height = 80 ft
total time in air = 8 seconds
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