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Author Question: A horizontal 52-N force must be exerted for a box to slide across a flat surface at a constant ... (Read 40 times)

mikaylakyoung

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on: Jul 29, 2018
A horizontal 52-N force must be exerted for a box to slide across a flat surface at a constant velocity of 3.5 m/s. What is the coefficient of kinetic friction between the box and the floor?
 
  A) 0.11
  B) 0.09
  C) 0.10
  D) 0.13

Question 2

The coefficients of static and kinetic friction between a 3.0-kg box and a horizontal desktop are 0.40 and 0.30, respectively. What is the force of friction on the box when a 15-N horizontal push is applied to the box?
 
  A) 4.5 N B) 6.0 N C) 15 N D) 8.8 N E) 12 N
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hugthug12

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Reply #1 on: Jul 29, 2018
Answer to Question 1

A

Answer to Question 2

D


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