aralbrec said:
theBEAST said:
The conservation of energy with rotational motion is a fundamental physical law that states that energy cannot be created or destroyed, only transferred or transformed. This means that the total energy of a system remains constant, even as it undergoes rotational motion.
Rotational motion involves the movement of an object around an axis or pivot point. As the object rotates, its kinetic energy and potential energy may change, but the total energy of the system remains the same.
The equation for calculating rotational kinetic energy is KE = 1/2 * I * ω^2, where KE is the kinetic energy, I is the moment of inertia, and ω is the angular velocity. This equation is derived from the basic formula for kinetic energy, KE = 1/2 * m * v^2, where m is the mass of the object and v is its linear velocity.
No, according to the law of conservation of energy, energy cannot be lost in a system with rotational motion. Any changes in energy, such as a decrease in kinetic energy, will be compensated by an increase in another form of energy, such as potential energy or thermal energy.
Friction can cause a loss of energy in rotational motion, as it converts some of the object's kinetic energy into thermal energy. This means that the total energy of the system may decrease over time as the object continues to rotate, but the law of conservation of energy still holds true as the lost energy is simply transferred to another form.