Calculating Launch Speed: What You Need to Know

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    Launch Speed
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Homework Help Overview

The discussion revolves around calculating the launch speed of a projectile, specifically in the context of vertical motion relative to Earth. The subject area includes concepts from gravitational physics and projectile motion.

Discussion Character

  • Exploratory, Conceptual clarification, Mathematical reasoning

Approaches and Questions Raised

  • Participants explore the formula for launch speed and its application to a projectile reaching an altitude equal to one Earth radius. Questions arise regarding the specific parameters involved in the calculation, such as the gravitational constant and the mass of Earth.

Discussion Status

Some participants have provided formulas related to gravitational forces and orbital mechanics. There is an ongoing exploration of the correct application of these formulas, with no explicit consensus reached on the approach to take.

Contextual Notes

Participants are discussing the implications of the altitude and the parameters needed for the calculations, indicating a need for clarity on the definitions and assumptions involved in the problem.

wilmerena
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Does anyone know the formula to find launch speed?
 
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Launch in order to do accomplish what?
 
im sorry i think i got it.

its of a projectile that rises vertically above the Earth to an altitude equal to one Earth radius

is it:
square root of: (Universal gravitational constant of earth) x (mass of earth) all divided by Radius of earth?
 
[tex] v_{orbit}=\sqrt{\frac{Gm}{r}}[/tex]

Where G is universal gravitational constant, m is mass of orbiting body, and r is radius between bodies.
 

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