Analyze the explanation and identify any false statements. Each statement to be analyzed is identified by a capital letter. A ball is rotating in a horizontal plane on the end of a string of length l. (A) The rotational kinetic energy remains constant as long as the length and angular speed are fixed. (B) When the ball is pulled inward and the length of the string is shortened, the rotational kinetic energy will remain constant due to conservation of energy, (C) but the angular momentum L will not remain constant because there is an external force acting on the ball to pull it inward. (D) The moment of inertia I remains constant and (E) the angular speed will remain the same throughout the process because the ball is rotating in the same plane throughout the motion. Select all of the statements that are false.
Analyze the explanation and identify any false statements. Each statement to be analyzed is identified by a capital letter. A ball is rotating in a horizontal plane on the end of a string of length l. (A) The rotational kinetic energy remains constant as long as the length and angular speed are fixed. (B) When the ball is pulled inward and the length of the string is shortened, the rotational kinetic energy will remain constant due to conservation of energy, (C) but the angular momentum L will not remain constant because there is an external force acting on the ball to pull it inward. (D) The moment of inertia I remains constant and (E) the angular speed will remain the same throughout the process because the ball is rotating in the same plane throughout the motion. Select all of the statements that are false.
Analyze the explanation and identify any false statements. Each statement to be analyzed is identified by a capital letter. A ball is rotating in a horizontal plane on the end of a string of length l. (A) The rotational kinetic energy remains constant as long as the length and angular speed are fixed. (B) When the ball is pulled inward and the length of the string is shortened, the rotational kinetic energy will remain constant due to conservation of energy, (C) but the angular momentum L will not remain constant because there is an external force acting on the ball to pull it inward. (D) The moment of inertia I remains constant and (E) the angular speed will remain the same throughout the process because the ball is rotating in the same plane throughout the motion. Select all of the statements that are false.
Analyze the explanation and identify any false statements. Each statement to be analyzed is identified by a capital letter.
A ball is rotating in a horizontal plane on the end of a string of length l. (A) The rotational kinetic energy remains constant as long as the length and angular speed are fixed. (B) When the ball is pulled inward and the length of the string is shortened, the rotational kinetic energy will remain constant due to conservation of energy, (C) but the angular momentum L will not remain constant because there is an external force acting on the ball to pull it inward. (D) The moment of inertia I remains constant and (E) the angular speed will remain the same throughout the process because the ball is rotating in the same plane throughout the motion.
Select all of the statements that are false.
Definition Definition Product of the moment of inertia and angular velocity of the rotating body: (L) = Iω Angular momentum is a vector quantity, and it has both magnitude and direction. The magnitude of angular momentum is represented by the length of the vector, and the direction is the same as the direction of angular velocity.
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