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If the angle of inclination of a plane increases, what happens to the static fri

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Question: If the angle of inclination of a plane increases, what happens to the static friction force acting on an object resting on the plane?

Options:

  1. Increases
  2. Decreases
  3. Remains constant
  4. Becomes zero

Correct Answer: Decreases

Solution: 

As the angle increases, the component of gravitational force parallel to the plane increases, which can lead to a decrease in static friction until it reaches its maximum value.

If the angle of inclination of a plane increases, what happens to the static fri

Practice Questions

Q1
If the angle of inclination of a plane increases, what happens to the static friction force acting on an object resting on the plane?
  1. Increases
  2. Decreases
  3. Remains constant
  4. Becomes zero

Questions & Step-by-Step Solutions

If the angle of inclination of a plane increases, what happens to the static friction force acting on an object resting on the plane?
Correct Answer: Static friction force decreases until it reaches its maximum value.
  • Step 1: Understand that static friction is the force that keeps an object at rest on a surface.
  • Step 2: Know that when a plane is inclined, gravity pulls the object down the slope.
  • Step 3: Realize that as the angle of the plane increases, the force pulling the object down the slope (parallel to the plane) also increases.
  • Step 4: Recognize that static friction must counteract this force to keep the object from sliding.
  • Step 5: Understand that static friction has a maximum value, which depends on the normal force and the coefficient of static friction.
  • Step 6: Conclude that as the angle increases, the static friction force can decrease until it reaches its maximum value, which is determined by the surface properties.
  • Static Friction – The force that resists the initiation of sliding motion between two surfaces in contact.
  • Inclined Plane – A flat surface tilted at an angle to the horizontal, affecting the forces acting on an object resting on it.
  • Gravitational Force Components – The breakdown of gravitational force into components parallel and perpendicular to the inclined surface.
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