A 50-Kg Ball and a 10

question 36

Multiple Choice

A 5.0-kg ball and a 10.0-kg ball approach each other with equal speeds of 20 m/s. If they collide perfectly inelastically, the speed of the balls just after the collision is approximately

• A) 1.0 m/s.
• B) 20 m/s.
• C) 6.7 m/s.
• D) 1.5 m/s.
• E) zero.

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Definitions:

Retina

The light-sensitive layer of tissue at the back of the inner eye, which converts light images into nerve signals sent to the brain.

Binocular Disparity

The difference in the images received by the two eyes due to their horizontal separation, which is used by the brain to perceive depth.

Visual Stimulus

Any object or event that is seen and stimulates the visual sense, leading to visual perception.

Depth

The quality of being profound (in thought, insight, or knowledge), or the apparent distance from the observer to the farthest point in a visual field, creating a three-dimensional perspective.