A particle of mass m1 = 3.74kg is traveling in the positive x-direction with a velocity of 17.5m/s. A second particle of mass m2 = 3.45kg is traveling in the positive y-direction with a velocity of 19.5m/s. There are no external forces (such as gravity) acting on these particles. After the particles collide, they stick together.
(a) What is the magnitude of the velocity?
(b) What is the angle that the new trajectory makes with the x-axis?