A particle of mass 4 kg is acted on by forces (pi+6j)(p\mathbf{i}+6\mathbf{j})(pi+6j) N, (8i−2j)(8\mathbf{i}-2\mathbf{j})(8i−2j) N and (−3i+qj)(-3\mathbf{i}+q\mathbf{j})(−3i+qj) N. The particle accelerates in the direction 2i+j2\mathbf{i}+\mathbf{j}2i+j with magnitude 35 m s−23\sqrt5\text{ m s}^{-2}35 m s−2.
Find p p\,p and qqq.