The figure above represents a stick of uniform density that is attached to a pivot at the right end and has equally spaced marks along its length. Any one or a combination of the four forces shown can be exerted on the stick as indicated.

Two of the four forces are exerted on the stick. Which of the following predictions is correct about the change in angular velocity of the stick per unit of time?

A. When F1 and F2 are exerted on the stick, the stick will have the greatest change in angular velocity per unit of time.

B. When F1 and F3 are exerted on the stick, the stick will not change its angular velocity per unit of time.

C. When F2 and F3 are exerted on the stick, the stick’s change in angular velocity per unit of time will be in the clockwise direction.

D. When F3 and F4 are exerted on the stick, the stick will have the smallest change in angular velocity per unit of time.
 

Transcribed Image Text:

F, = 200 N F2 = 100 N F4 = 25 N %3D 0.5 m F3 = 50 N F, = 200 N F2 = 100 N F4 = 25 N %3D 0.5 m F3 = 50 N

Answer rating: 100% (QA)

Let the torque produced by the forces F1 F2 F3 and F4 be T 1 T 2 T 3 and T 4 respectively The chan... View the full answer