Minimum change in velocity Helpppp?

In summary, the conversation discusses calculating the minimum change in velocity required for the Space Shuttle to decrease its altitude to 60 miles. The given rule of thumb states that for every 2 fps change in velocity, the altitude will change by 1 mile. The Shuttle's current orbit has an apogee of 236 miles and a perigee of 215 miles above the Earth's surface. The homework problem asks for the delta V (change in velocity) needed for this altitude change. The user is asked to show their attempted solution and their current roadblock in order to receive assistance.
  • #1
wahoowa2012
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0
Minimum change in velocity! Helpppp?

Homework Statement


Calculate the minimum change in velocity (delta V or ∆V) required for the Space Shuttle to decrease its altitude to 60 miles if it’s orbiting with an apogee of 236 miles and a perigee of 215 miles above the surface of Earth.

Use the rule of thumb that below an altitude of 500 miles, for every 2 feet per second (fps) change in the orbiting space craft’s velocity its altitude will change by 1 mile.


Homework Equations





The Attempt at a Solution

 
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  • #2
welcome to pf!

hi wahoowa2012! welcome to pf! :wink:

Show us what you've tried, and where you're stuck, and then we'll know how to help! :smile:
 

Related to Minimum change in velocity Helpppp?

1. What is the definition of minimum change in velocity?

The minimum change in velocity is the smallest amount by which the velocity of an object can be altered, either by increasing or decreasing its speed or changing its direction.

2. How is minimum change in velocity calculated?

The minimum change in velocity can be calculated by subtracting the initial velocity from the final velocity. The result is the minimum change in velocity required for the object to reach its final destination.

3. What factors affect the minimum change in velocity?

The minimum change in velocity is affected by factors such as the mass of the object, the forces acting on the object, and the distance it needs to travel. The type of propulsion used can also impact the minimum change in velocity.

4. Why is minimum change in velocity important in space travel?

In space travel, the minimum change in velocity is crucial in order to reach a specific destination or orbit. It is also important for spacecraft to conserve fuel and minimize the amount of energy needed for a mission, making the calculation of minimum change in velocity critical.

5. How can minimum change in velocity be optimized for a space mission?

To optimize the minimum change in velocity for a space mission, engineers and scientists must carefully consider various factors such as the trajectory, propulsion systems, and gravitational forces. They also use advanced calculations and simulations to determine the most efficient and effective route for the spacecraft.

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