Advertisements
Advertisements
प्रश्न
How does uniform circular motion differ from uniform linear motion?
Advertisements
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.
APPEARS IN
संबंधित प्रश्न
Which one of the following is most likely not a case of uniform circular motion?
A particle goes round a circular path with uniform speed v. After describing half the circle, what is the change in its centripetal acceleration?
A wheel is 0.25 m in radius. When it makes 15 revolutions per minute, its linear speed at the point on circumference is ____________.
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)
The motion of the bus is ______ motion.
Define uniform circular motion and give an example of it. Why is it called accelerated motion?
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)
A wet open umbrella is held upright and is rotated about the handle at a uniform rate of 21 revolutions in 44 s. If the rim of the umbrella is a circle of 1 metre in diameter and the height of the rim above the floor is 1.5 m, the drops of water spun off the rim and hit the floor at a horizontal ______ m from the umbrella.
A wheel rotating at the same angular speed undergoes constant angular retardation. After the revolution, angular velocity reduces to half its initial value. It will make ______ revolution before stopping.
A particle moving with uniform speed in a circular path maintains ______.
