MasteringPhysics Practice questions all chapters chl to 11-Google Chrome Secure

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MasteringPhysics Practice questions all chapters chl to 11-Google Chrome Secure Practice questions all chanters chi t https://session.masteringphysics.com/myct itemView?offsetsnext&assignmentProbl; Resource Multiple Choice Question 5.24 e previous 38 of S Multiple Choice Question 5.24 Part A A 101 N force is needed to slide a 50.0 kg box coefficient of kinetic friction between the box and the floor? across a flat surface at a constant velocity. What is 024 0.19 0.21 0.17 Submit My Answers Give Up Continue 5:58 PM 11/30/2017

Explanation / Answer

Using force balance:

Velocity is constant, So

a = acceleration = 0

Fnet = F - Ff = 0

F = Ff

F = uk*m*g

uk = F/mg = 101/(50*9.81)

uk = 0.206

Correct option is C.

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