Two masses are hung by a massless cord over a disk with radius R and mass M as shown.If the angular velocity of the disk is 2 rad/s counterclockwise and is not changing,which one of the following statements is true? A)T₂ m₂g B)T₂ T₁ C)The net torque on the disk must be zero. D)The angular acceleration of the disk is counterclockwise. E)T₁m₁ + T₂m₂ = Mg

Question

Two masses are hung by a massless cord over a disk with radius R and mass M as shown.If the angular velocity of the disk is 2 rad/s counterclockwise and is not changing,which one of the following statements is true? A)T₂ > m₂g B)T₂ > T₁ C)The net torque on the disk must be zero. D)The angular acceleration of the disk is counterclockwise. E)T₁m₁ + T₂m₂ = Mg

Quizplus · Accepted Answer

Since the angular velocity of the disk is constant, there is no angular acceleration or torque acting on the disk. Therefore, the net torque on the disk must be zero. Furthermore, none of the other statements are necessarily true based on the information given.

Two Masses Are Hung by a Massless Cord Over a Disk