…theta degrees, the coefficient of static friction c for the book is given by cp cos theta = p sin theta. Solve the equation for c and find the value of c when theta = 15 degrees.
c p cos theta = p sin theta therefore
c = p sin theta/ p cos theta = sin theta/ cos theta
c= sin 15/cos 15 = 0.258/0.966
c = 0.267Please appreciate my help by selecting my answer as the best, Thanks!
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