Q3] The gure below shows the position of two balls separating in opposite directions after a perfectly elastic collision. Assume the balls have different magnitudes on their velocities and masses before collision.(30 marks) ' . . _, .,.4.~'- , . .._. _ - . . Wt a. Indicate the direction of the momentum of each ball after collision 8 marks b. Were the two balls both moving or can one be initially at rest before collision? To answer this, choose sample initial velocities representing both cases 8 marks c. Solve each situation using the formulas for elastic collision 8 marks d. Analyze your answer in (b) by comparing your results in (c) 6 marks