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26 Nov 2019
A rocket rises vertically, from rest, with an acceleration of 3.2m/s2 until it runs out of fuel at an altitude of 1300 m. After thispoint, its acceleration is that of gravity, downward. (a) What isthe velocity of the rocket when it runs out of fuel? (Assume up ispositive.)
1 m/s
(b) How long does it take to reach this point?
2 s
(c) What maximum altitude does the rocket reach?
3 m
(d) How much time (total) does it take to reach maximumaltitude?
4 s
(e) With what velocity does the rocket strike the Earth? (Assume upis positive.)
5 m/s
(f) How long (total) is it in the air?
6 s
A rocket rises vertically, from rest, with an acceleration of 3.2m/s2 until it runs out of fuel at an altitude of 1300 m. After thispoint, its acceleration is that of gravity, downward. (a) What isthe velocity of the rocket when it runs out of fuel? (Assume up ispositive.)
1 m/s
(b) How long does it take to reach this point?
2 s
(c) What maximum altitude does the rocket reach?
3 m
(d) How much time (total) does it take to reach maximumaltitude?
4 s
(e) With what velocity does the rocket strike the Earth? (Assume upis positive.)
5 m/s
(f) How long (total) is it in the air?
6 s
