A Dinner Plate Falls Vertically to the Floor and Breaks

Multiple Choice

A dinner plate falls vertically to the floor and breaks up into three pieces,which slide horizontally along the floor.Immediately after the impact,a 320-g piece moves along the +x-axis with a speed of 2.00 m/s and a 355-g piece moves along the +y-axis with a speed of 1.50 m/s.The third piece has a mass of 100 g.In what direction relative to the +x-axis does the third piece move?

A) 216.9° from the +x-axis
B) 219.8° from the +x-axis
C) 36.9° from the +x-axis
D) 39.9° from the +x-axis
E) 39.8° from the +x-axis