Which of the following factors determines the strength of the frictional force between two surfaces?
A. The types of surfaces involved
B. The amount of heat generated by the friction
C. How long the surfaces have been in contact
D. How hard the surfaces push together
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Explanation:
Answer: A,D are the factors determining the strength of frictional force. Explanation:If the surfaces are rough then the friction is more. normal force is proportionally equal to friction,it means if you press the object hard it proportionally increases the friction.
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Answer:
a option the type of surface involved
it the correct answer
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