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प्रश्न
Which of the following remains constant in a uniform circular motion, Speed or Velocity, or both?
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उत्तर
In a uniform circular motion, speed remains constant.
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संबंधित प्रश्न
A particle starts from the origin at t = 0 s with a velocity of 10.0 `hatj "m/s"` and moves in the x-y plane with a constant acceleration of `(8.0 hati + 2.0 hatj) ms^(-2)`.
- At what time is the x-coordinate of the particle 16 m? What is the y-coordinate of the particle at that time?
- What is the speed of the particle at the time?
Which of the following quantity remains constant in a uniform circular motion?
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To which side the rule will tilt if the mass m is moved to the mark 10cm ?
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(g = 10 m/s2 , tan 45° = 1)
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For a particle performing uniform circular motion, choose the correct statement(s) from the following:
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- Particle velocity remains directed perpendicular to radius vector.
- Direction of acceleration keeps changing as particle moves.
- Angular momentum is constant in magnitude but direction keeps changing.
A small bead of mass m can move on a smooth circular wire (radius R) under the action of a force F = `"Km"/"r"^2` directed (r = position of bead r from P and K = constant) towards a point P within the circle at a distance R/2 from the centre. The minimum velocity should be ______ m/s of bead at the point of the wire nearest the centre of force (P) so that bead will complete the circle. (Take `"k"/(3"R")` = 8 unit)
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