physics

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A model rocket is launched straight upward
with an initial speed of 51.6 m/s. It accelerates with a constant upward acceleration of
1.96 m/s2 until its engines stop at an altitude
of 230 m.
What is the maximum height reached by
the rocket? The acceleration of gravity is
9.81 m/s2.
Answer in units of m

When does the rocket reach maximumheight?
Answer in units of s

How long is the rocket in the air?
Answer in units of s

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