A solid cylinder of mass 2 kg and radius 0.2 m is rotating about its own axis without friction with an angular velocity of 3 rad s- 1 . Angular momentum of the cylinder is

Question

A solid cylinder of mass 2 kg and radius 0.2 m is rotating about its own axis without friction with an angular velocity of 3 rad s- 1 . Angular momentum of the cylinder is (A) 0.2Js (B) 1.12Js (C) 0.12 J s (D) 12Js

Tardigrade Admin · Accepted Answer

L=Iω =((1/2) m r2)ω =(1/2)× 2(0.2)2× 3=0.12 J s

Q. A solid cylinder of mass $2 k g$ and radius $0.2 m$ is rotating about its own axis without friction with an angular velocity of $3 r a d s^{- 1}$ . Angular momentum of the cylinder is

$0.2 J s$

$1.12 J s$

$0.12 J s$

$12 J s$

$L = I ω = (\frac{1}{2} m r^{2}) ω = \frac{1}{2} \times 2 (0.2)^{2} \times 3 = 0.12 J s$

Q. A solid cylinder of mass 2kg and radius 0.2m is rotating about its own axis without friction with an angular velocity of 3rads−1 . Angular momentum of the cylinder is

0.2Js

1.12Js

0.12Js

12Js