Projectile Motion Calculations for a Shell Fired at 30 Degrees

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Homework Help Overview

The problem involves projectile motion, specifically analyzing the trajectory of a shell fired at an angle of 30 degrees with a total flight time of 40 seconds. The original poster seeks to determine the horizontal distance traveled and the maximum height reached by the shell.

Discussion Character

  • Exploratory, Conceptual clarification, Mathematical reasoning

Approaches and Questions Raised

  • The original poster expresses uncertainty regarding the time given in the problem, questioning whether it should be interpreted as a speed instead. Some participants reference familiar equations related to linear motion and suggest making an inventory of known parameters to identify suitable equations for the problem.

Discussion Status

The discussion is ongoing, with participants exploring various equations and their applicability to the problem. There is no explicit consensus yet, but some guidance has been offered regarding the use of linear motion equations.

Contextual Notes

There is a noted ambiguity in the problem statement regarding the time duration, which may affect the interpretation of the projectile's motion. No specific values for initial velocity or other parameters have been provided.

mc2_phy
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Homework Statement



A shell is fired at an abgle of 30 degrees to the horizontal. If the shell stays in the air for 40 seconds, calculate
a)how far it lands from it's original position
b)the highest point it can reach

Homework Equations



N/a

The Attempt at a Solution


I was unparticularly sure because the q says 40 seonds- should it be 40m/s
 
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Is

v = v_{0} +gt

a familiar equation?
 
Use your linear motion equations.

v = u+gt
s = ut + 0.5gt^2
and v^2 = u^2+2gs

make an inventory of what parameter values you have and see which equation suits it best...
 
No not really. Just wondering how you solve this.
 
thank you.
 

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