Doubt from rotation mechanics

Question no 10 i am getting angular velocity as 1.25 rad/s but i am getting iar as 12cm which is not matching with any options


Actually i had got 12 cm from topmost point P which is 8 cm from point Q

Question 8

it is a?

A and D both are correct

Send working too

angular velovity= perpendicular relative velocity/distance between them. hence a.

1 Like

Can anyone tell me the working for derivation of M.I of 1st,2nd,3rd and fourth inertia results

1 Like

Please reupload i am not able to see it clearly

There is a mistake i dont need derivation of rod case rest others i need how to derive

1 Like

1 Like

For MI of hollow cylinder , solid cylinder, rod

MI of solid sphere and hollow sphere

1 Like