Math Problem Statement
A 600 N physics student stands on a bathroom scale in an elevator that is supported by a cable. The combined mass of student plus elevator is 900 kg. As the elevator starts moving, the scale reads 420 N.
What is the tension in the cable if the scale reads 420 N?
Express your answer with the appropriate units.
Solution
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Math Problem Analysis
Mathematical Concepts
Newton's Second Law
Forces
Gravitational Force
Tension in a Cable
Formulas
F_net = m * a
F_gravity = m * g
T = F_gravity - F_net
m = F_weight / g
Theorems
Newton's Second Law of Motion
Suitable Grade Level
Grades 10-12
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