A constant torque acting on a uniform circular disc changes its angular mkomentum from L to 4L/3 in 2 seconds. Then the magnitude of the torque applie

Question

A constant torque acting on a uniform circular disc changes its angular mkomentum from L to 4L/3 in 2 seconds. Then the magnitude of the torque applie

A constant torque acting on a uniform circular disc changes its angular mkomentum from L to 4L/3 in 2 seconds. Then the magnitude of the torque applied is
A. L/3
B. 2L/3
C. 3L/2
D. L/6

Monjur Alahi

5 views

2025-01-04 04:42

1 Answers

Related Questions

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

Angular momentum of body changes by 80 kg `m^(2)//s`, when its angular velocity changes from 20 rad/s to rad/s. Then the change in its kinetic energy

2 Answers 4 Views

If a wheel has mass 70 kg and radius of gyration 1 m, then the torque required an angular 1 m, then the torque required an angular acceleration of `"2

2 Answers 8 Views

A disc of moment of inertia `3 kg m^(2)` is acted upon by a constant torque of 60 Nm, if the disc is at rest, then the time after which the angular ve

2 Answers 5 Views

A disc of mass 16 kg and radius 25 cm is rotated about its axis. What torque will increase its angular velocity from 0 to `8 pi` rad/s in 8 s ?

2 Answers 4 Views

If a torque of magnitude 100 Nm acting on a rigid body produces an angular acceleration of `2 rad//s^(2)`, then the moment of inertia of that body wil

2 Answers 4 Views

A large disc has mass 2kg and radius 0.2 m and initial angular velocity 50 rad/s and small disc has mass 4kg and radius 0.1 m and initial angular velo

2 Answers 8 Views

A uniform disc of mass 2kg is rotated about an axis perpendicular to the plane of the disc . If radius of gyration is 50cm, then the M.I. of disc abou

2 Answers 5 Views

A body is acted upon by a constant torque . In 4 seconds its angular momentum changes from L to 4L . The magnitude of the torque is

2 Answers 7 Views

A circular disc A of radius r is made from an iron plate of thickness t and another circular disc B of radius 4r is made from an iron plate of thickne

2 Answers 8 Views

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

Salim Ahmed Kawsar

Correct Answer - D
`tau = (dL)/(dt)=(L_(2)-L_(1))/(dt)`

5 views Answered 2023-02-05 15:29