A book sits on a horizontal top of a car which accelerates horizontally from rest. If the static coefficient of friction between car top and book is `0.45`, what is the maximum acceleration the car can have if the book does not slip ? `(g = 10 ms^(-2))`

Options

A. `50 ms^(-2)`
B. `0.50 ms^(-2)`
C. `44.1 m//sec^(2)`
D. `4.5 ms^(-2)`

Answer

D

Explanation

`a_("max") = (mu mg)/(m) = mu g`