NASA launches a rocket att = 0 seconds. Its height, in meters above sea level, as...

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NASA launches a rocket att = 0 seconds. Its height, in meters above sea level, as a function of time is given by h(t) = - 4.9

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Answer 1

Answer #1

The rocket splashes down after____seconds?

Solve -4.9t²+199t+129=0

We get t=41.2505seconds

Answer is 41.2505 seconds

The rocket peaks at?

Max value =-b/2a

-199/2(4.9)

At 20.3061 seconds

Answer is h(20.3071)=-4.9(20.3071)²+199(20.3071)+129

=2149.4591 meters ( answer)

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Answer 2

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