Math Problem Statement
Sebuah benda massanya 4 kg bergerak pada suatu bidang datar yang kasar dengan kecepatan 6 m/s. Akibat
gaya gesekan maka benda berhenti pada jarak 3 meter. Hitunglah:
a). Usaha yang dilakukan oleh gaya gesekan untuk menghentikan benda
b). Besarnya gaya gesekan benda terhadap bidang datar.
Solution
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Math Problem Analysis
Mathematical Concepts
Kinetics
Work-Energy Principle
Forces
Friction
Formulas
Work formula: W = ΔE_k
Kinetic energy formula: E_k = (1/2)mv^2
Frictional force: F_friction = W / s
Theorems
Work-Energy Theorem
Kinetic Energy Conservation
Suitable Grade Level
Grades 10-12
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