Question

defination of angular momentum with example​

Answer 1

Angular momentum describes an object that is rotating/spinning. So you’ll need the object’s mass and speed as well, but in a rotating frame. Somehow you need different tools to understand rotations (I mean, they are different compared to straight-line movements). So the equivalent of mass in a rotation/spin is the inability to rotate/spin, and the rotational/spin equivalent of velocity is just the amount of angle it covers per unit time. Take the product between “rotational mass” and “rotational velocity” to get angular momentum.

Applications:

flywheels used in vehicles; a fascinating and practical application

spin-orbit coupling of electrons in atoms; demonstrating hyper-fine spectroscopy phenomena

figure-skaters pulling their arms in; they spin faster but over-all angular momentum is conserved

space-craft launching with Earth-spin - gain speed but Earth fractionally loses momentum.

Hope it clear to you

Answer 2

Answer:the quantity of rotation of a body, which is the product of its moment of inertia and its angular velocity