Physics, 02.10.2021 14:00 Elenegoggg
The height of a rocket above t seconds after firing is given by s=ut-5t^2, where u represents the initial speed of the rocket. If the initial speed is 70 ms^-1, find the amount of time the rocket is in the air and the time the rocket is above 30m.
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The height of a rocket above t seconds after firing is given by s=ut-5t^2, where u represents the in...
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