मराठी

How does uniform circular motion differ from uniform linear motion?

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प्रश्न

How does uniform circular motion differ from uniform linear motion?

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उत्तर

When a force acts on a body at rest which is free to move, the body starts moving at a constant speed in a straight path in the direction of the force. This type of motion is called uniform linear or uniform translational motion.

Whereas when a body or a particle moves with a constant speed in a circular path, its motion is said to be uniform circular motion.

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2016-2017 (March) Set 1

संबंधित प्रश्‍न

Draw a neat labelled diagram of conical pendulum. State the expression for its periodic time in terms of length.


A stone tied to the end of a string 80 cm long is whirled in a horizontal circle with a constant speed. If the stone makes 14 revolutions in 25 s, what is the magnitude and direction of acceleration of the stone?


A uniform circular motion is an accelerated motion. Explain it. State whether the acceleration is uniform or variable? Name the force responsible to cause this acceleration. What is the direction of force at any instant? Draw a diagram in support of your answer.


Which one of the following is most likely not a case of uniform circular motion?


Is the uniform circular motion accelerated? Give reasons for your answer.


A stone of mass 3 kg attached at one end of a 2m long string is whirled in horizontal circle. The string makes an angle of 45° with the vertical then the centripetal force acting on the string is ______.

(g = 10 m/s2 , tan 45° = 1)


Define uniform circular motion and give an example of it. Why is it called accelerated motion?


For a particle performing uniform circular motion, choose the correct statement(s) from the following:

  1. Magnitude of particle velocity (speed) remains constant.
  2. Particle velocity remains directed perpendicular to radius vector.
  3. Direction of acceleration keeps changing as particle moves.
  4. Angular momentum is constant in magnitude but direction keeps changing.

The acceleration of a point on the rim of a flywheel 1 m in diameter, if it makes 1200 rpm is ______.


In uniform circular motion, although the speed is constant, why does acceleration occur?


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