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An 8.00-kg package in a mail-sorting room slides 2.00 m
Chapter 3, Problem 10E(choose chapter or problem)
An 8.00-kg package in a mail-sorting room slides 2.00 m down a chute that is inclined at 53.0° below the horizontal. The coefficient of kinetic friction between the package and the chute’s surface is 0.40. Calculate the work done on the package by(a) friction (b) gravity, and (c) the normal force (d) What is the net work done on the package)
Questions & Answers
QUESTION:
An 8.00-kg package in a mail-sorting room slides 2.00 m down a chute that is inclined at 53.0° below the horizontal. The coefficient of kinetic friction between the package and the chute’s surface is 0.40. Calculate the work done on the package by(a) friction (b) gravity, and (c) the normal force (d) What is the net work done on the package)
ANSWER:Solution 10E Introduction We will draw a figure of the situation containing all the forces, then we will identify each forces and what are the angles with the displacement, then we will calculate the total work done on the box. Step 1 The work done by a force is given by W = Fdcos Where F is the force d is the displacement and is the angle between force and displacement.