Angular Momentum

Question 1

Principle of conservation of angular momentum

Answer 1

Angular momentum of a rotating body is conserved unless acted upon by an external torque

Question 2

Angular momentum symbol and units

Answer 2

L, Kgm^2s^-1

Question 3

Angular momentum and angular velocity equation

Answer 3

L=Iw
Where L is angular momentum in kgm^2s^-1
I is moment of inertia kgm^2
And w is angular velocity in rads^-1

Question 4

Equations involving angular momentum and radius

Answer 4

L=mvr and L=mr^2w

Question 5

Ek(rotational)=

Answer 5

1/2Iw^2
Where I is moment of inertia in kgm^2
And w is angular velocity it rads^-1

Question 6

Ek(total) equal (two)

Answer 6

Ek(rotational)+Ek(translocational)= Ep