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valentina_108 [34]

3 years ago

9

A rocket travels in a trajectory given by the equation s = -4.9t 2 + v0t, where s is meters above ground, t is time in seconds a

nd v0 is the initial velocity.
If the intial velocity is 49 m/sec, after how many seconds will the rocket reach its maximum height?

a. 5
b. 15
c. 10

1 answer:

Julli [10]3 years ago

8 0

C. Is your answer
Have any more questions? Please add in the comments
-Josh-

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Recall that cos Ф = adj / hyp. If adj = 6 and hyp = 10, then by the Pythagorean Theorem, opp = 8: 6² + 8² = 10²

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cos Ф is given: 6/10 or 3/5

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