A flatbed truck is carrying a 20.0-kg crate along a level road. The coefficient of static friction between the crate and the bed is 0.400, and the coefficient of kinetic friction is 0.300. What is the
Maximum acceleration that the truck can have if the crate is to stay in place relative to the truck?
A) 7.84 m/s²
B) 8.00 m/s²
C) 78.5 m/s²
D) 3.92 m/s²
E) 196 m/s²

Question

Quizplus · Accepted Answer

The maximum acceleration is determined by the static friction, which is the product of the coefficient of static friction (0.400) and gravitational acceleration (9.8 m/s²). Thus, a_max = 0.400 * 9.8 m/s² = 3.92 m/s².

A Flatbed Truck Is Carrying a 20