Question #6417391Single Choice
Physics
Question
A box with a weight of 200 N is resting on a horizontal floor. A horizontal force of at least 45 N is required to start moving the box from rest. Once the box is in motion, a horizontal force of 40 N is sufficient to keep it moving at a constant speed. What is the the coefficient of kinetic friction
Options
A
0.15
B
0.20
C
0.25
D
0.30