Learning Path
Question & Answer
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35 m/s²
81 m/s²
90 m/s²
50 m/s²
Understanding the Answer
Let's break down why this is correct
The friction force that can be produced equals the coefficient times the car’s weight, giving a maximum braking force that lets the car slow down by about 35 m/s² before it begins to slip. Other options are incorrect because The idea that friction could provide more than 35 m/s² comes from thinking the car’s mass lets it hold a huge extra force, but friction depends only on the weight, not on how heavy the vehicle is; Assuming 90 m/s² assumes that the friction coefficient is far higher than 0.6; a coefficient above 1 is impossible for dry road contact, so this value is unattainable.
Key Concepts
Friction
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Deep Dive: 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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