Rocket Out of Fuel: Time and Altitude

In summary, a rocket rises vertically with an acceleration of 4.0m/s until it runs out of fuel at an altitude of 1500m. After this point, its acceleration is that of gravity, downward. To find the time it takes to reach this point, we can use the equation x=x+vt+.5at^2. The rocket reaches a maximum altitude of 3000m and it takes a total of 45 seconds to reach this point. The velocity of the rocket when it strikes the Earth is unknown, as we do not have enough information. The total time the rocket is in the air is also unknown.
  • #1
afa
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Homework Statement



A rocket rises vertically, from rest, with an acceleration of 4.0 until it runs out of fuel at an altitude of 1500 . After this point, its acceleration is that of gravity, downward.
How long does it take to reach this point?

What maximum altitude does the rocket reach?

How much time (total) does it take to reach maximum altitude?
With what velocity does the rocket strike the Earth
How long (total) is it in the air?

Homework Equations



x=x+vt+.5at^2

The Attempt at a Solution



I found velocity when it runs out of fuel to be 110m/s don't know how to get the rest??
 
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  • #2
We need more units! I'm guessing acceleration of 4.0m/s and an altitude of 1500 meters?
 

FAQ: Rocket Out of Fuel: Time and Altitude

1. What happens when a rocket runs out of fuel?

When a rocket runs out of fuel, it is no longer able to generate the thrust needed to continue its journey. This means that it will begin to slow down and eventually stop moving forward.

2. How long does a rocket's fuel last?

The duration of a rocket's fuel depends on the specific type of fuel used and the size and design of the rocket. Generally, a rocket's fuel will last for a few minutes to a few hours, depending on these factors.

3. Can a rocket run out of fuel in space?

Yes, a rocket can run out of fuel in space. In fact, most rockets are designed to use up all of their fuel during launch and then rely on the momentum gained to continue their journey.

4. What happens to a rocket after it runs out of fuel?

After a rocket runs out of fuel, it will continue to move forward but at a slower pace due to the lack of thrust. Depending on its trajectory and the forces acting upon it, it may eventually enter into orbit around a celestial body or continue on a path out into space.

5. Can a rocket be refueled in space?

Yes, it is possible for a rocket to be refueled in space. This has been done in the past with spacecrafts such as the International Space Station. However, it requires careful planning and precise maneuvering to successfully transfer fuel in the weightless environment of space.

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