A wheel 2 kg having practically all the mass concentrated along the circumference of a circle of radius 20 cm is rotating on its axis with angular vel

Question

A wheel 2 kg having practically all the mass concentrated along the circumference of a circle of radius 20 cm is rotating on its axis with angular vel

A wheel 2 kg having practically all the mass concentrated along the circumference of a circle of radius 20 cm is rotating on its axis with angular velocity of 100 rad/s, then the rotational kinetic energy of wheel is
A. 4 J
B. 70 J
C. 400 J
D. 800 J

Monjur Alahi

4 views

2025-01-04 04:42

1 Answers

Related Questions

The angular velocity of a wheel is `70 rad//sec` . If the radius of the wheel is 0.5 m , then linear velocity of the wheel is

2 Answers 5 Views

If a poit on the circumference of a wheel having diameter 4 m has velocity of 1600 cm/s, then the angular velocity of the wheel will be

2 Answers 4 Views

A wheel is subjected to uniform angular acceleration about its axis with its angular velocity is zero . In the first two seconds , it rotates through

2 Answers 4 Views

A body of mass m performing UCM with frequency n along the circumference of circle having radius r, force is given by

2 Answers 9 Views

Kinetic energy of a wheel rotating about its central axis is E. Then kinetic energy of another axis is E. Then kinetic energy of another wheel having

2 Answers 5 Views

A wheel of mass 8 kg and radius 40 cm is rolling on a horizontal road with angular velocity 15 rad/s. If moment of inertia of the wheel about its axis

2 Answers 4 Views

A body of mass 2 kg and radius of gyration 0.5 m is rotating about an axis. If its angular speed is 2 rad/s, then the angular momentum of the body wil

2 Answers 7 Views

A disc of mass 2 kg and radius 0.2 m is rotating about an axis passing through its centre and perpendicular to its plane with an angular velocity 50 r

2 Answers 5 Views

A body of moment of inertia of `3kgm^(2)` rotating with an angular velocity or 2rad//s has the same kinetic energy as a mass of 12kg moving with a vel

2 Answers 4 Views

A cord is wound round the circumference of wheel of radius `r`. The axis of the wheel is horizontal and fixed and moment of inertia about it is `I`. A

2 Answers 4 Views

Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

Salim Ahmed Kawsar

Correct Answer - C
`KE = (1)/(2) I omega^(2)`

4 views Answered 2023-02-05 15:29