Question

A rocket rises vertically, from rest, with an acceleration of 4.1 m/s² until it runs out of fuel at an altitude of 870 m After this point, its acceleration is that of gravity, downward. ? Part A What is the velocity of the rocket when it runs out of fuel? Express your answer using two significant figures. Assume that the positive direction is upward. v = 84 m/s Submit Previous Answers ? Part B Correct How long does it take to reach this point? Express your answer using two significant figures. t = 21 s

          A rocket rises vertically, from rest, with an acceleration of 4.1 m/s² until it runs out of fuel at an altitude of 870 m
After this point, its acceleration is that of gravity, downward.
? Part A
What is the velocity of the rocket when it runs out of fuel?
Express your answer using two significant figures. Assume that the positive direction is upward.
v = 84 m/s
Submit
Previous Answers
? Part B
Correct
How long does it take to reach this point?
Express your answer using two significant figures.
t = 21 s

A rocket rises vertically, from rest, with an acceleration of 4.1 m/s² until it runs out of fuel at an altitude of 870 m
After this point, its acceleration is that of gravity, downward.
? Part A
What is the velocity of the rocket when it runs out of fuel?
Express your answer using two significant figures. Assume that the positive direction is upward.
v = 84 m/s
Submit
Previous Answers
? Part B
Correct
How long does it take to reach this point?
Express your answer using two significant figures.
t = 21 s

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