- #1
swechan02
- 5
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What would be the kenetic energy, it the bar is rotating? But it has different speed along it's mass. Need to use calculas?
Kinetic energy is the energy an object possesses due to its motion. It is defined as the work needed to accelerate a body of a given mass from rest to its current velocity.
The kinetic energy of a rotating bar is calculated using the formula KE = 1/2 * I * ω^2, where KE is the kinetic energy, I is the moment of inertia, and ω is the angular velocity.
The moment of inertia is a measure of an object's resistance to changes in its rotation. It is calculated by summing the mass of each particle in the object multiplied by the square of its distance from the axis of rotation.
The kinetic energy of a rotating bar is directly proportional to the square of its angular velocity. This means that as the angular velocity increases, the kinetic energy also increases.
No, the kinetic energy of a rotating bar cannot be negative. It is always a positive value that represents the energy of the object's motion.