Projectile problems (Stuck at equation and answer)

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Homework Help Overview

The discussion revolves around a projectile motion problem where the original poster has calculated a velocity and angle but finds a discrepancy with the book's answer. The subject area is kinematics, specifically focusing on projectile motion equations.

Discussion Character

  • Exploratory, Assumption checking

Approaches and Questions Raised

  • The original poster presents their calculated values and seeks verification. Some participants question the omission of gravity in the relevant equation, suggesting it may be a crucial factor in the calculations.

Discussion Status

The discussion is ongoing, with participants exploring the implications of the original poster's calculations and questioning the assumptions made. Guidance has been offered regarding the necessity of including gravity in the analysis.

Contextual Notes

There are indications that the original poster may have edited their initial post, which could suggest adjustments to their approach or calculations. The forum guidelines emphasize the importance of making a best attempt at the problem.

Leejia
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Homework Statement
A missile is to be launched from a point P 500m from the peak of a hill of height 2000m into enemy territory. If the missile is just pass over the hill and strike a target 1200m from P, calculate the velocity at which the missile should be launched (140 ms^-1 horizontally to 19 degree )
Relevant Equations
V=u+at
S=ut+1/2at^2
X=usin$ t
Hi i get the answer about 203.xxx ms ^–1 and 81.7 degree but the book answer given is not similar to my answer, So I hope helper can help me verified this ans
 
Last edited:
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Seems like your relevant equation does not contain gravity. Shouldn't there be some contribution of gravity to the problem.
 
I just editted sorry
 

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