deaja10103 deaja10103

20-11-2020
Physics

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A rocket initially at rest on the ground lifts off vertically with a constant acceleration of 20m/s^2. How long will it take the rocket to reach an altitude of 16km

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LammettHash LammettHash

20-11-2020

16 km = 1/2 (20 m/s²) t ²

t ² = (32 km) / (20 m/s²)

t ² = (32,000 m) / (20 m/s²)

t = √(1600 s²)

t = 40 s

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