मराठी
महाराष्ट्र राज्य शिक्षण मंडळएचएससी विज्ञान (सामान्य) इयत्ता ११ वी

Define angular velocity.

Advertisements
Advertisements

प्रश्न

Define angular velocity.

व्याख्या
Advertisements

उत्तर

Angular velocity of a particle is the rate of change of angular displacement.

shaalaa.com
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 3: Motion in a Plane - Exercises [पृष्ठ ४५]

APPEARS IN

बालभारती Physics [English] Standard 11 Maharashtra State Board
पाठ 3 Motion in a Plane
Exercises | Q 2. (x) | पृष्ठ ४५

संबंधित प्रश्‍न

A particle rotates in U.C.M. with tangential velocity V along a horizontal circle of diameter ‘D' . Total angular displacement of the particle in time 't' is..........


Read the statement below carefully and state, with reason, if it is true or false:

The acceleration vector of a particle in uniform circular motion averaged over one cycle is a null vector.


Is it possible to have an accelerated motion with a constant speed? Explain


Why is the motion of a body moving with a constant speed around a circular path said to be accelerated?


Draw a neat labelled diagram for a particle moving in a circular path with a constant speed. In you diagram show the direction of velocity at any instant.


A uniform linear motion is unaccelerated, while a uniform circular motion is an accelerated motion.


Which of the following quantity remains constant in a uniform circular motion?


A uniform metre rule of mass 100g is balanced on a fulcrum at mark 40cm by suspending an unknown mass m at the mark 20cm.

To which side the rule will tilt if the mass m is moved to the mark 10cm ?


Is it possible to have an accelerated motion with a constant speed? Explain.


Answer the following question.

Show that its time period is given by, 2π`sqrt((l cos theta)/("g"))` where l is the length of the string, θ is the angle that the string makes with the vertical, and g is the acceleration due to gravity.


A uniform rod of length '6L' and mass '8 m' is pivoted at its centre 'C'. Two masses 'm' and ' 2m' with speed 2v, v as shown strikes the rod and stick to the rod. Initially the rod is at rest. Due to impact, if it rotates with angular velocity 'w1' then 'w' will be ________.


If a particle moves with uniform speed then its tangential acceleration will be ______.


The angular speed of the minute hand of a clock in degrees per second is ______.


A cyclist is riding with a speed of 43.2 km/h. As he approaches a circular turn on the road of radius 60 m, he applies brakes and reduces his speed at constant rate of 1.8 ms-2. The magnitude of the net acceleration of the cyclist is ______.


The given graph represents motion with ______ speed.


A body moves in a uniform circular motion ______.


Which of the following is correct about uniform circular motion

  1. the direction of motion is continuously changed
  2. the direction of motion is not changed
  3. speed and direction both remain constant
  4. speed is constant but the direction is changing

A body is said to be in nonuniform motion if it travels ______.


It is possible to have objects moving with uniform velocity but non-uniform acceleration.


If a body is moving in a circle of radius r with a constant speed v, its angular velocity is ______.


A cyclist starts from centre O of a circular park of radius 1 km and moves along the path OPRQO as shown figure. If he maintains constant speed of 10 ms–1, what is his acceleration at point R in magnitude and direction?


A disc of radius 5 cm rolls on a horizontal surface with linear velocity v = 1`hat"i"` m/s and angular velocity 50 rad/s. Height of particle from ground on rim of disc which has velocity in vertical direction is ______ cm.


A particle moves along a circle of radius r with constant tangential acceleration. If the velocity of the particle is v at the end of second revolution, after the revolution has started, then the tangential acceleration is ______.


A wheel is rotating at 900 rpm about its axis. When the power is cut off it comes to rest in 1 min. The angular retardation (assumed to be uniform (in rad s-1) is ______.


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


A body of mass m is moving in circle of radius r with a constant speed v. The work done by the centripetal force in moving the body over half the circumference of the circle is ______.


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


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×