Conservation of Momentum III A cat (mass m) drops straight down out of a tree onto the head of an unsuspecting ice skater (mass M) who is skating on a fritionless pond. Assume the ice skater weighs more than the cat. Also assume that the system includes both the skater and the cat. INITIAL ': m FINAL + x MQ vo a. Draw two bar graphs to represent conservation of momentum for this situation. x-direction y-direction Initial Momentum + Impulse = Final Momentum Initial Momentum + Impulse = Final Momentum Pxo + Pxo Pxf + Pxf Pyo + Pyo Pyf + Pyf cat skater cal skater cat skater cat skater b. Does your graph indicate that the skater's speed is increasing, decreasing or staying the same? c. Write equations corresponding to each graph. Define any symbols that you use in your equations. d. Suppose that values for M, m, and vo are provided. What other quantities can be determined from the equations you wrote? e. Redraw the two graphs assuming the ice on the pond is not frictionless. x-direction y-direction Initial Momentum + Impulse = Final Momentum Initial Momentum + Impulse = Final Momentum + = Pyf Pxo JX Pxf + Pyf Pxo Pxf Pyo Pyo cat skater cat cat skater skater skater cat Page 6.3