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Using the right-hand screw rule, the vector direction of angular momentum (L) is perpendicular to the plane formed by position vector (r) and momentum vector (p). Which statement aligns with this principle?

1. The cross product F1 × F2 × x equals F3 × x.
2. The force F3 is the sum of F1 and F2.
3. If no external torque is applied, the angular momentum of a system remains conserved.
4. The total angular momentum of the system, Lsystem, is the sum of Lman and Lplatform, and remains constant.

Correct answer: If no external torque is applied, the angular momentum of a system remains conserved.

Solution

Option C is correct because the conservation of angular momentum states that in the absence of an external torque, the total angular momentum of a system remains constant. This is a fundamental principle in rotational dynamics.

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