A 1000-Kg Automobile Moving with a Speed of 24 M/s

question 21

Multiple Choice

A 1000-kg automobile moving with a speed of 24 m/s relative to the road collides with a 500-kg automobile initially at rest. If the two stick together, what is the velocity in m/s of the two cars after the collision according to an observer in a truck moving 10 m/s in the same direction as the moving cars?

• A) 6
• B) 11
• C) 24
• D) 26
• E) 31

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Definitions:

Similarity

The cognitive process of recognizing objects or ideas that are alike in appearance or concept.

Texture Gradient

This visual cue indicates depth by the gradual change in appearance of objects as they move further away, with details becoming denser and finer the farther they are from the viewer.

Relative Size

A perceptual cue that allows the determination of the size of an object in comparison to another object of known size.

Interposition

A visual cue in which an object that blocks part of another object is perceived as being closer to the observer.