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Question

session.masteringphysics.com abc about.blank about:blank aboutblank about:blank aboutblank.course Ho- Mast Chaoter 5.HomeworkProblem 5.26 Problem 5.26 Part A Two workers are sliding 500 kg crate across the floor One worker pushes forward on the crate with a force of 410 N while the other puls in the same direction with a force of 200 N using a rope connected to the crate. Both forces are horizontal, and the crate sides with a constant speed What is the crate's ooefficient of kinetic friction on the floor? Express your answer using two significant figures Submit My Answers Glive Up

Explanation / Answer

here,

mass , m = 500 kg

let the coefficient of kinetic friction be uk

as the crate is moving at constant speed

the net force on it is zero

410 + 200 = uk * m * g

610 = uk * 500 * 9.81

solving for uk

uk = 0.12

the coefficient of kinetic friction is 0.12