In a Contest, Two Tractors Pull Two Identical Blocks of Stone

question 5

Multiple Choice

In a contest, two tractors pull two identical blocks of stone the same distance over identical surfaces. However, block A is moving twice as fast as block B when it crosses the finish line. Which statement is correct?

• A) Block A has twice as much kinetic energy as block B.
• B) Block B has lost twice as much kinetic energy to friction as block A.
• C) Block B has lost twice as much kinetic energy as block A.
• D) Both blocks have had equal losses of energy to friction.
• E) No energy is lost to friction because the ground has no displacement.

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Definitions:

Chiropractic Treatment

A form of alternative medicine focusing on diagnosis and manual adjustment or manipulation of the spine.

Therapeutic Manipulation

A treatment approach involving physical adjustments or techniques to help alleviate physical or psychological conditions.

Spine

The central support structure of the skeleton, made up of vertebrae, providing structural support and protecting the spinal cord.

Stimulate Qi

A concept in traditional Chinese medicine referring to practices aimed at enhancing or balancing the flow of 'qi' or life energy throughout the body.