1. The problem statement, all variables and given/known data The velocity of a 6 kg particle is given by v = (5ti + 4t2j ) m/s, with time t in seconds. At the instant the net force on the particle has a magnitude of 43 N, what are the direction (relative to the positive direction of the x axis) of (a) the net force and (b) the particle's direction of travel? 2. Relevant equations F= ma 3. The attempt at a solution I don't know what to do can someone give me a hint?