1. The problem statement, all variables and given/known data A firefighter whose weight is 812 N is sliding down a vertical pole, her speed increasing at the rate of 1.45 m/s2. Gravity and friction are the two significant forces acting on her. What is the magnitude of the frictional force? 2. Relevant equations Fk = ukFn uk = coefficient of kinetic friction 3. The attempt at a solution I'm not sure what the coefficient of KF should be so I just tried .. 812*1.45 = 1177.4 I'm not sure how to incorporate the gravity and friction into the equation.