Question

Reduction in Speed of a rotating body when struck by a small mass

Answer 1

Answer:

When an item spins in a closed system with no external torques applied to it, its angular momentum remains constant.

Explanation:

• The conservation of angular momentum explains how an ice skater's arms and legs accelerate as they approach the vertical axis of rotation.

• When the net torque is zero, angular momentum is preserved or constant.
• Quantum mechanics is a field of physics that analyses matter and energy at the level of atoms and other basic particles, replacing traditional Newtonian mechanisms with probabilistic ones.
• A force's rotating or twisting impact is known as torque. (Newton-meter or Nm in SI; foot-pound or ft-lb in imperial)
• angular momentum is a term that refers to the amount of energy that A vector quantity that describes an object in circular motion; its magnitude equals the particle's momentum, and its direction is perpendicular to the circular motion plane.
• L=I, or L=rxp, is the mathematical definition of angular momentum. Which is the moment of inertia multiplied by the angular velocity, or the object's radius multiplied by the linear momentum.
• After a collision in a closed system, angular momentum is preserved in all directions.
• Because momentum is preserved, once an item begins to spin following a collision, some of the momentum in the collision may become angular momentum.