(20%) Problem 1: An ice skater is traveling in a straight= horizontal line on the ice with a velocity of 1; = -'-'. 5 m s in the positive xdirection. The coefficient of kinetic friction between the skates and the ice is M = 3.13. Randomized Variables 1; = 7.5 m. 5 ,uk = 3.13 .3 j, 25% Part (a) YVrite an expression for the normal force: FR: that the ice pushes against both skates together. Assume the skater's mass is m. -j j, 25% Pa rt (b) Using the expression for normal force. write an expression for the skater's acceleration in the x-direction, a. -j a, 25% Part (c) How long, I}: in seconds: will it take for the skater's velocity to drop by halt\".j & 25% Part (d) How fair= d}: in meters, will the skater travel during the time 55:? Grade Summary a}! = l Deductions Potential 100%