What is the net force acting on an object if balanced forces are applied?

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RRB JE ECE 22 Apr 2025 Shift 1 CBT 2 Official Paper
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  1. Equal to the mass of the object
  2. Zero
  3. Equal to acceleration
  4. Infinite

Answer (Detailed Solution Below)

Option 2 : Zero
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The Correct answer is Zero.

Key Points

  • Balanced forces are equal in magnitude and opposite in direction.
  • When balanced forces act on an object, they cancel each other out.
  • This results in no net force acting on the object.
  • As a result, the object remains in its current state of motion, either staying at rest or continuing to move with a constant velocity.
  • According to Newton's First Law of Motion, an object will remain at rest or in uniform motion unless acted upon by an unbalanced force.
  • Therefore, when balanced forces are applied, the net force is zero, and there is no change in the object's motion.

 Additional Information

  • Equal to the mass of the object
    • The mass of an object is a measure of the amount of matter it contains and is not related to the net force acting on the object.
    • Mass remains constant regardless of the forces applied to the object.
  • Equal to acceleration
    • The net force acting on an object is equal to the mass of the object multiplied by its acceleration (F = ma), according to Newton's Second Law of Motion.
    • This option is incorrect because it does not consider the condition of balanced forces, which result in zero net force and no acceleration.
  • Infinite
    • An infinite force is an unrealistic and impractical concept in physics.
    • Balanced forces do not imply an infinite force but rather equal and opposite forces that cancel each other out.

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