Part C of problem Please see attachment : What is the minimum horizontal force needed to keep the book from slipping. Note that P=515N, and P=normal force, Fs=131.32N, Us=.255, M=9.85kg
The Attempt at a Solution
My answer is 378.549N, which makes no sense becasue in the previous part my force of static friction was 131.32N. PLease help!