Which of the following is true about the two conditions of equilibrium given by

Question

Which of the following is true about the two conditions of equilibrium given by equations (1) and (2) in the pre-lab, when applied to a certain rigid body acted by a system of forces in mechanical equilibrium? a. The first states that the velocity of the body is either zero or constant o b. The second states that the angular velocity of the body is either zero or constant. C. Together they state that the body is either at rest or moving with constant net momentum. d All of the above are true. e. None of the above is true

Explanation / Answer

The first equal represents the body is in translational equilibrium that means the body is moving with constant speed or the body is at rest.

The second equation represents that the body is at rotational equilibrium that means the body is rotating with constnat angular speed or the angular speed is zero.

Two statements state that the body is under rest or moving with constant momentum.

Thus, the option (d) is correct.

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