A Plate Falls Vertically to the Floor and Breaks Up

question 42

Multiple Choice

A plate falls vertically to the floor and breaks up into three pieces,which slide 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 does the third piece move? You can neglect any horizontal forces during the crash.

• 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

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