Three forces acting on an object are given by F1 = ( i + j ) N, and F2= ( i j ) N, and F3 = ( i) N. The object experiences an acceleration of magnitude m/s2. (a) What is the direction of the acceleration? (b) What is the mass of the object? (c) If the object is initially at rest, what is its speed after t= s? (d) What are the velocity components of the object after t=10s?