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A particle is acted upon by a force of constant magnitude. Which is always perpendicular to the velocity of the particle ? The motion of the particle takes place in a plane. It follow that that
  • a)
    its velocity is constant
  • b)
    its acceleration is constant
  • c)
    its kinetic energy is constant
  • d)
    it moves in a circular path
Correct answer is option 'C,D'. Can you explain this answer?
Most Upvoted Answer
A particle is acted upon by a force of constant magnitude. Which is al...
Perpendicular Force on a Particle in a Plane

When a particle is acted upon by a force of constant magnitude that is always perpendicular to its velocity, the following can be observed:

Circular Motion

The particle moves in a circular path because the force acts as a centripetal force, pulling the particle towards the center of the circle.

Constant Kinetic Energy

Since the force is always perpendicular to the velocity of the particle, it does not do any work on the particle. Therefore, the kinetic energy of the particle remains constant.

Variable Speed

Although the particle moves in a circular path, its speed is not constant. This is because the force only changes the direction of the particle, not its speed. Therefore, the particle will move faster when it is farther away from the center of the circle and slower when it is closer to the center.

Conclusion

In conclusion, when a particle is acted upon by a force of constant magnitude that is always perpendicular to its velocity, it will move in a circular path with variable speed while maintaining constant kinetic energy.
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A particle is acted upon by a force of constant magnitude. Which is always perpendicular to the velocity of the particle ? The motion of the particle takes place in a plane. It follow that thata)its velocity is constantb)its acceleration is constantc)its kinetic energy is constantd)it moves in a circular pathCorrect answer is option 'C,D'. Can you explain this answer?
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A particle is acted upon by a force of constant magnitude. Which is always perpendicular to the velocity of the particle ? The motion of the particle takes place in a plane. It follow that thata)its velocity is constantb)its acceleration is constantc)its kinetic energy is constantd)it moves in a circular pathCorrect answer is option 'C,D'. Can you explain this answer? for Class 11 2024 is part of Class 11 preparation. The Question and answers have been prepared according to the Class 11 exam syllabus. Information about A particle is acted upon by a force of constant magnitude. Which is always perpendicular to the velocity of the particle ? The motion of the particle takes place in a plane. It follow that thata)its velocity is constantb)its acceleration is constantc)its kinetic energy is constantd)it moves in a circular pathCorrect answer is option 'C,D'. Can you explain this answer? covers all topics & solutions for Class 11 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A particle is acted upon by a force of constant magnitude. Which is always perpendicular to the velocity of the particle ? The motion of the particle takes place in a plane. It follow that thata)its velocity is constantb)its acceleration is constantc)its kinetic energy is constantd)it moves in a circular pathCorrect answer is option 'C,D'. Can you explain this answer?.
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