A hand grenade (m=580g) slides across the (essentially frictionless) floor at a speed of 0.86 m/s. It misfires, and breaks into two pieces; a 197 g fragment skitters off at a speed of 1.58 m/s at an angle of 37 degrees relative to its original direction of motion. What is the direction (relative to the original direction of motion) and speed of the second fragment?