1. The problem statement, all variables and given/known data A block of mass 2kg is accelerated by the two forces F1 = 8i + 3j and F2 = -5i - 7j, (a) What is the net force on the block in unit vector notation, and what is its magnitude and direction? (b) What is the magnitude and direction of the acceleration? 2. Relevant equations I'm not sure of the equation for the direction. 3. The attempt at a solution I was able to dot the two vectors to get the Force, but I am stuck from here.