Rotational MotionHard
Question
A smooth tube of certain mass is rotated in gravity free space and released. The two balls shown in the figure move towards ends of the tube. For the whole system which of the following quantity is not conserved : -
Options
A.Angular momentum
B.Linear momentum
C.Kinetic energy
D.Angular speed
Solution
When ball moves towards ends of the tube MI increases
(∴ For system
are zero)
∴ Angular momentum & linear momentum remains constant
∴ I1ω1 = I2ω2 I2 > I1 ω2 < ω1
(∴ For system
are zero)∴ Angular momentum & linear momentum remains constant
∴ I1ω1 = I2ω2 I2 > I1 ω2 < ω1
Create a free account to view solution
View Solution FreeMore Rotational Motion Questions
A particle of mass m moves with a constant velocity. Which of thefollowing statements is not correct about its angular m...A solid cylinder of mass M and radius R rolls without slipping down an inclined plane of length L and height h. What is ...If the earth were to suddenly contract to th of its present radius without any change in its mass then the duration of t...Two disc one of density 7.2 g/cm3 and the other of density 8.9 g/cm3 are of same mass and thickness. Their moments of in...Two discs of same moment of inertia rotating about their regular axis passing through centre and perpendicular to the pl...