A projectile is fired from a platform 30 feet high with an initial velocity of 120 mph. Its height is given by the equation s(t) =-16t2 + 120t + 30. Rounds answers to the nearest tenth and include units. %3D a. What is its maximum height? b. How long will it be in the air?

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A projectile is fired from a platform 30 feet high with an initial velocity of 120 mph. Its height is given by the
equation s(t)=-16t2 +120t + 30. Rounds answers to the nearest tenth and include units.
a. What is its maximum height?
b. How long will it be in the air?
Transcribed Image Text:A projectile is fired from a platform 30 feet high with an initial velocity of 120 mph. Its height is given by the equation s(t)=-16t2 +120t + 30. Rounds answers to the nearest tenth and include units. a. What is its maximum height? b. How long will it be in the air?
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