So here I am:
Before beginning the Irish Leaving Cert last September (equivalent to British A-Levels, etc), I had absolutely no background knowledge in the subject apart from some basic equations and principles from Junior Cert Science (equivalent to British GCSE's, but much less detailed) -...
Homework Statement
A particle is projected with initial velocity u\cos\alpha\vec{i}+u\sin\alpha\vec{j} m/s from a point 0 on a horizontal plane.
If this particle passes through two points whose displacements from 0 are 3\vec{i}+\vec{j} and \vec{i}+3\vec{j}
show that the range is...