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Question & Answer
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Friction increases with the increase in the normal force.
Friction always acts in the direction of motion.
The coefficient of friction is a measure of how much frictional force exists between two surfaces.
Friction can be reduced by using lubricants.
Friction is independent of the types of surfaces in contact.
Understanding the Answer
Let's break down why this is correct
Increasing the normal force pushes the surfaces together, so the friction force also grows. Other options are incorrect because The belief is that friction pushes the object forward; Some think friction is the same for any surfaces.
Key Concepts
Friction
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Definition
Friction in Physics refers to the force that opposes motion between two surfaces in contact. It plays a crucial role in determining how objects move on surfaces and is influenced by the normal force and the friction coefficient. Understanding friction is essential for analyzing the behavior of objects on horizontal and inclined surfaces.
Topic Definition
Friction in Physics refers to the force that opposes motion between two surfaces in contact. It plays a crucial role in determining how objects move on surfaces and is influenced by the normal force and the friction coefficient. Understanding friction is essential for analyzing the behavior of objects on horizontal and inclined surfaces.
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