question_answer

A particle moves from the point \[(2.0\hat{i}+4.0\hat{j})m\], at \[t=0\], with an initial velocity \[\left( 5.0\hat{i}+4.0\hat{j} \right)m{{s}^{-1}}\]. It is acted upon by a constant force which produces a constant acceleration \[\left( 4.0\hat{i}+4.0\hat{j} \right)m{{s}^{-2}}\]. What is the distance (in metre) of the particle from the origin at time 2s?

Answer:

28.28