Need help with this Projectile question (1 Viewer)

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vilst3r

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The question I need help is : find to nearest m, its distance from A when it strikes the ground ( the bottom half)
For that, I'm stuck at x=160sin2(theta) for the range equation but I can't get the distance without finding the angle of projection which I'm uncertain of finding... The answer is 226m. Any quick help would be appreciated
 

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vilst3r said:
The question I need help is : find to nearest m, its distance from A when it strikes the ground ( the bottom half)
For that, I'm stuck at x=160sin2(theta) for the range equation but I can't get the distance without finding the angle of projection which I'm uncertain of finding... The answer is 226m. Any quick help would be appreciated
Click to expand...
The initial projection angle is 0 because it is fired horizontally.
 
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