a light meter rod has two point masses each of 2 kg fixed at its ends if - Physics - System Of Particles And Rotational Motion

Question

a light meter rod has two point masses each of 2 kg fixed at its
ends if the system rotates about its axis centre of mass with an
angular speed of 0 5 rad /sec ,find its rotational kinetic
energy
pllzzz solve with the help of a diagram

Rajnish Kumar · Accepted Answer

Dear Student
As the rod is light hence moment of inertia of rod is ignored hence
the rotational energy is due to two point mass only

k= 2×12Iω2=Iω2=mr2ω2=2×14×14=18=0
25J
Regards

a light meter rod has two point masses each of 2 kg . fixed at its ends .if the system rotates about its axis centre of mass with an angular speed of 0.5 rad /sec ,find its rotational kinetic energy pllzzz solve with the help of a diagram

a light meter rod has two point masses each of 2 kg . fixed at its ends .if the system rotates about its axis centre of mass with an angular speed of 0.5 rad /sec ,find its rotational kinetic energy
pllzzz solve with the help of a diagram