A crane that is unsecured sits on the back of a flatbed truck. The truck acceler

Question

A crane that is unsecured sits on the back of a flatbed truck. The truck accelerated from rest. What is the minimum coefficient of static friction between the crate and the bed of the truck, so that the crate will not slip assuming the trucks acceleration is 4.5 m/s^2 A crane that is unsecured sits on the back of a flatbed truck. The truck accelerated from rest. What is the minimum coefficient of static friction between the crate and the bed of the truck, so that the crate will not slip assuming the trucks acceleration is 4.5 m/s^2

Explanation / Answer

f_max = us N = us m g

a_max = f_max / m = us g

and we want a = 4.5 m/s^2

so minimum us = a/g = 4.5/9.8

us = 0.46

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