A flatbed truck is carrying a 20.0-kg crate up a sloping road. The coefficient of static friction between the crate and the bed is 0.400. What is the maximum angle of slope that the truck can climb at constant speed if the crate is to stay in place?
A) 0.381°
B) 13.1°
C) 21.8°
D) 23.6°
E) 66.4°

Question

Quizplus · Accepted Answer

The maximum angle of slope can be found using the formula:

θ = tan⁻¹(μs)

where μs is the coefficient of static friction.

θ = tan⁻¹(0.400) = 21.8°

Therefore, the maximum angle of slope that the truck can climb at constant speed if the crate is to stay in place is 21.8°.

A Flatbed Truck Is Carrying a 20