Asked by Angela
In our physics class we launched a rocket up into the air. We measured the time it took to go up to the point it reached the ground once again. How do I find the maximum height the rocket reached?
Answers
Answered by
Damon
Well, you need to ignore friction.
If so then:
Initial velocity up = Vi
v at top = 0
so
0 = Vi - 9.8 t where t it time at top
so
t at top = Vi/9.8
so Vi = 9.8 t
total time in air = 2 t = Vi/4.9
You measured 2 t evidently so divide your total time by 2 to get rise time t
height = Vi t - 4.9 t^2
height = 9.8 t^2 - 4.9 t^2
= 4.9 t^2
If so then:
Initial velocity up = Vi
v at top = 0
so
0 = Vi - 9.8 t where t it time at top
so
t at top = Vi/9.8
so Vi = 9.8 t
total time in air = 2 t = Vi/4.9
You measured 2 t evidently so divide your total time by 2 to get rise time t
height = Vi t - 4.9 t^2
height = 9.8 t^2 - 4.9 t^2
= 4.9 t^2
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