Three Particles Are Placed in the Xy Plane

question 57

Multiple Choice

Three particles are placed in the xy plane. A 30-g particle is located at (3, 4) m, and a 40-g particle is located at (−2, −2) m. Where must a 20-g particle be placed so that the center of mass of the three-particle system is at the origin?

• A) (−3, −1) m
• B) (+1, +3) m
• C) (+3, −1) m
• D) (−1, −3) m
• E) (−0.5, −2) m

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Definitions:

Tracking

The act of monitoring and recording the movement or progress of an object or trend over a period of time.

Interesting Sound

A noise or tone that captures attention due to its unique, pleasing, or intriguing qualities.

Perceptual Constancy

The tendency of perceiving objects as unchanging (having consistent colors, brightness, shape, and size) even as illumination and retinal images change.

Monocular

Referring to or involving one eye.