Home
Class 11
PHYSICS
A uniform disc is rolling on a horizonta...

A uniform disc is rolling on a horizontal surface at a uniform speed of 3 rps. The radius of the disc is 10 cm and its mass is 1.2 kg. Calculate its (i) angular velocity , (ii) linear velocity and (iii) kinetic energy of rotation.

Text Solution

Verified by Experts

The correct Answer is:
`18.85 rad .s^(-1); 1.88 m.s^(-1); 1.066 j`
Promotional Banner

Topper's Solved these Questions

  • ROTATION OF RIGID BODIES

    CHHAYA PUBLICATION|Exercise Problem Set - II (Based on Angular Velocity )|1 Videos

  • ROTATION OF RIGID BODIES

    CHHAYA PUBLICATION|Exercise Problem Set - II (Based on Conservation of Angular Momentum )|3 Videos

  • ROTATION OF RIGID BODIES

    CHHAYA PUBLICATION|Exercise Problem Set - I (Based on Angular Momentum )|7 Videos

  • QUESTION PAPERS OF WBCHSE -2018

    CHHAYA PUBLICATION|Exercise SECTION -II|20 Videos

  • SIMPLE HARMONIC MOTION

    CHHAYA PUBLICATION|Exercise CBSE SCANNER|16 Videos

Similar Questions

Explore conceptually related problems

Moment of inertia of a disc is 100 g. cm^(2) . If the disc rotates with an angular velocity of 2 rad .s^(-1) the rotational kinetic energy of the disc is

A solid sphere of diameter 2 cm and of mass 20 g is rolling with a velocity of 3 cm. s^(-1) . What is the total kinetic energy of the sphere?

A disc of mass 2 Kg and radius 1 m rotates about its own axis with and angular speed 60 rpm. Find its kinetic energy and angular momentum .

A wheel of mass 5 kg and radius 0.4 m is rolling on a road without sliding with angular velocity 10 rad. s^(-1) . The moment of inertia of the wheel about the axis of rotation is 0.65 kg . m^(2) . What is the percentage of the kinetic energy of rotation in the total kinetic energy of the wheel ?

Uniform circular ring of radius 0.5 m has a mass 10 kg and a uniform circular disc of the same radius has a mass 10 kg. Calculate their moment of inertia about an axis passing through the centre and perpendicular to the plane of a ring or a disc.

A particle of mass 0.5g is executing SHM with a time period of 2s and an amplitude of 5 cm. Calculate its (i) maximum velocity, (ii) maximum acceleration and (iii) velocity, acceleration and force acting on the particle when it is at a distance of 4 cm from its position of equilibrium.

The engine of a motor car is rotating at a constant speed of 150 rpm. Acquiring acceleration suddenly it gains a velocity of 3000 rpm in 3 s. what will be its angular velocity after 2 s ?

A 2 kg mass is suspended from the free end of a sonometer wire. The radius of the wire is 0 . 1 mm and the density of its meterial is 8 g * cm^(-3) . What is the velocity of the transverse vibration in the string ?

A solid sphere of mass 1 kg and of radius 10 cm is rotating about one of its diameter with an angular velocity of pi rad . s^(-1) . Calculate the kinetic energy of the sphere by using the relevant formula.