A thin and circular disc of mass \( M \) and radius \( R \) is rotating in a horizontal plane ab...

Channel:
PW Solutions
Subscribers:
449,000
Published on ● Video Link: https://www.youtube.com/watch?v=6IILyThMwwM


Duration: 1:44
162 views
2

A thin and circular disc of mass \( M \) and radius \( R \) is rotating in a horizontal plane about an axis passing through its centre and perpendicular to its plane with an angular velocity \( \omega \). If another disc of same dimensions but of mass \( M / 4 \) is placed gently on the first disc co-axially, then the new angular velocity of the system is
[AIEEE 2002]
(a) \( \frac{5}{4} \omega \)
(b) \( \frac{2}{3} \omega \)
(c) \( \frac{4}{5} \omega \)
(d) \( \frac{3}{2} \omega \)
📲PW App Link - https://bit.ly/YTAI_PWAP
🌐PW Website - https://www.pw.live



Other Videos By PW Solutions


2022-10-27Two particles \( A \) and \( B \) are moving as shown in figure. Their total angular momentum ab...
2022-10-27A small mass \( m \) is attached to a massless string whose other end is fixed at \( P \) as sho...
2022-10-27A body ' \( A \) ' moves with constant velocity on a straight line path tangential to the earth'...
2022-10-27A particle performs uniform circular motion with an angular momentum \( L \). If the frequency o...
2022-10-27A cockroach is moving with velocity \( v \) in anticlockwise direction on the rim of a disc of r...
2022-10-27A particle of mass \( m \) is moving in \( y z \)-plane with a uniform velocity \( v \) with its...
2022-10-27When a man stands on a turn-table stretching with two equal loads in hand and rotates. Then he f...
2022-10-27Consider a body, shown in figure, consisting of two identical balls, each of mass \( M \) connec...
2022-10-27If the radius of the earth is suddenly contracts to half of its present value, then the duration...
2022-10-27A particle of mass \( m \) moves in the \( X Y \) plane with a velocity \( v \) along the straig...
2022-10-27A thin and circular disc of mass \( M \) and radius \( R \) is rotating in a horizontal plane ab...
2022-10-27A rod of mass ' \( M \) ' and length ' \( 2 L \) ' is suspended at its middle by a wire. It exhi...
2022-10-27A thin horizontal circular disc is rotating about a vertical axis passing through its centre. An...
2022-10-27A mass \( m \) is moving with a constant velocity along a line parallel to \( x \)-axis. Its ang...
2022-10-27A particle undergoes uniform circular motion. About which point on the plane of the circle, will...
2022-10-27If the earth shrinks such that its mass does not change but radius decreases to one quarter of i...
2022-10-27When a mass is rotating in a plane about a fixed point, its angular momentum is directed along [...
2022-10-27An \( L \) - shaped object, made of thin rods of uniform mass density, is suspended with a strin...
2022-10-27A uniform heavy disc is rotating at constant angular velocity \( \omega \) about a vertical axis...
2022-10-27A solid cylinder of mass \( 2 \mathrm{~kg} \) and radius \( 4 \mathrm{~cm} \) rotating about its...
2022-10-27A horizontal platform is rotating with uniform angular velocity around the vertical axis passing...


Tags:
pw