3/185 A particle of mass m moves with negligible friction on a horizontal surface and is connected to a light spring fastened at O. At position A the particle has the velocity vy = 4 m/s. Determine the velocity vy of the particle as it passes position B. PROBLEM 3/185 (a) Draw a free-body diagram of the particle and evaluate the torque of the resultant force about 0. (b) Use polar basis vectors e, along OA and ey pointing clockwise, and evaluate the angular momentum of the particle as it passes through the position A. () Do the same thing at B and solve for vg