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Due Date: 7/3/2022 11:59:00 PM End Date: 11/21/2025 11:59:00 PM (396) Problem 4: A hockey pack of mass m is shot across a rough floor in a straight line. The puck moves in the positive x direction, and the coefficient of friction between the floor and the puck depends on position as j(x)= a + bx, where a is a dimensionless constant and b is a constant with units of m Write an expression for the work done by kinetic friction as the puck moves from xx₁ tox=x₂. Your answer should be in terms of m, 1₁. 12. a, b, and g (the acceleration due to gravity). W= B a g k P Hints: 0% deduction per hint Hints remaining 1 Submit Y b h m X1 Hint 0 d J 11 x₂ (7 8 9 1456 123 0 +- NO BACK copy Feedback I give up! Feedback: 0% deduction per feedback Grade Summary Deductions Potential Late Work Late Potential 15 100% 100% 100% Submissions Attempts remaining 900 (0% per attempt) detailed view