Question: A flatbed truck is loaded with a stack of sacks of cement whose combined mass is 1195.5 kg. The coefficient of static friction between

A flatbed truck is loaded with a stack of sacks of cement

A flatbed truck is loaded with a stack of sacks of cement whose combined mass is 1195.5 kg. The coefficient of static friction between the bed of the truck and the bottom sack in the stack is 0.372, and the sacks are not tied down but held in place by the force of friction between the bed and the bottom sack. The truck accelerates uniformly from rest to 55.1 mph in 23.1 s. The coefficient of kinetic friction between the bottom sack and the truck bed is 0.257. What is the work done on the stack by the force of friction between the stack and the bed of the truck? ed 857.5 kJ

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