Two discs are rotating about their axes, normal to the discs and passing through the centres of ....

Channel:
PW Solutions
Subscribers:
449,000
Published on ● Video Link: https://www.youtube.com/watch?v=yk2UrNZh0Zc


Duration: 5:40
0 views
0

Two discs are rotating about their axes, normal to the
\( \mathrm{P} \)
discs and passing through the centres of the discs. Disc \( D_{1} \) has \( 2 \mathrm{~kg} \) mass and \( 0.2 \mathrm{~m} \) radius and initial angular velocity of \( 50 \mathrm{rad} \mathrm{s}^{-1} \). Disc \( D_{2} \) has \( 4 \mathrm{~kg} \) mass, \( 0.1 \mathrm{~m} \) radius and initial angular velocity of \( 200 \mathrm{rad} \mathrm{s}^{-1} \). The two discs are brought in contact face to face, with their axes of rotation coincident. The final angular velocity (in rad. \( \mathrm{s}^{-1} \) ) of the system is
(1) 60
(2) 100
(3) 120
(4) 40


📲PW App Link - https://bit.ly/YTAI_PWAP
🌐PW Website - https://www.pw.live



Other Videos By PW Solutions


2024-01-21At what height from the ground will the value of ' \( \mathrm{g} \) ' be the same as that in \( ....
2024-01-21Two bodies of mass \( M \) and \( 4 M \) are kept at a distance \( y \) apart. Where should a sm....
2024-01-21Four particles of equal mass \( m \) are placed at the four corners of a square \( A B C D \) as....
2024-01-21Two rods each having length \( l \) and mass \( m \) joined together at point \( B \) as shown i....
2024-01-21A metre stick of mass \( 1 \mathrm{~kg} \) is held vertically with one end on the floor and is t....
2024-01-21A uniform dise and a solid sphere both of mass \( m \) and radius \( R \) are projected horizont....
2024-01-21A uniform disc and a solid sphere both of mass \( m \) and radius \( R \) are projected horizont....
2024-01-21A uniform disc and a solid sphere both of mass \( m \) and radius \( R \) are projected horizont....
2024-01-21When a bicycle is in motion, the force of friction exerted by the ground on the two wheels is su....
2024-01-21Four particles of mass \( m \) each are placed at four corners of a square \( A B C D \) of side....
2024-01-21Two discs are rotating about their axes, normal to the discs and passing through the centres of ....
2024-01-21A cubical block of side \( a \) is moving with velocity \( v \) on a horizontal smooth plane as ....
2024-01-21A horizontal platform is rotating with uniform angular velocity around the vertical axis passing....
2024-01-21A disc of mass \( M \) and radius \( R \) is rolling with angular speed \( \omega \) on a horizo....
2024-01-21A particle starts from the point \( (0,8) \) metre and moves with uniform velocity of \( \vec{v}....
2024-01-21A bob of mass \( m \) attached to an inextensible string of length \( l \) is suspended from ver....
2024-01-21A heavy solid sphere is thrown on a horizontal rough surface with initial velocity \( u \) witho....
2024-01-21A uniform disc of mass \( m \) and radius \( R \) is pivoted at point \( P \) and is free to rot....
2024-01-21A thin rod of mass \( m \) and length \( l \) is suspended from one of its ends. It is set into ....
2024-01-21The moment of the force, \( \vec{F}=4 \hat{i}+5 \hat{j}-6 \hat{k} \) at point \( (2,0,-3) \) abo....
2024-01-21Mass \( M \) is distributed over the rod of length \( L \). If linear mass density \( (\lambda) ....