Two point-like beads which have the same mass are rotating at the ends of a li shown. The rod is initially rotating at w; = 2.00 rev/sec. An internal mechanism extends the length of the rod to be l = 120 cm. How fast is the rod rotating after its length was extended? (A) wp = 0.174 rev/s Wi (B) wr = 0.347 rev/s (C) wp = 0.417 rev/s (D) wp = 0.833 rev/s (E) ws = 1.67 rev/s (F) ws = 2.00 rev/s Rotation axis (G) wr = 11.5 rev/s A rotating massless rod with two beads on each end. The rod extends its length from l, to ly via an internal mechanism while rotating.

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Torque

Torque is the rotational equivalent of linear force in physics and mechanics. Based on the course of study, it is also known as the moment of force, rotational force, or turning effect.