A Horse Pulls a Cart with Force $\overrightarrow { \mathbf { F } }$

question 39

Multiple Choice

A horse pulls a cart with force $\overrightarrow { \mathbf { F } }$ . As a result of this force the cart accelerates with constant acceleration. The magnitude of the force that the cart exerts on the horse

• A)is zero newtons.
• B)equal to the magnitude of \(\overrightarrow { \mathbf { F } }\) .
• C)less than the magnitude of \(\overrightarrow { \mathbf { F } }\) .
• D)greater than the magnitude of \(\overrightarrow { \mathbf { F } }\) .
• E)cannot be determined without knowing the mass of the horse.

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Definitions:

Physical Activity

Any bodily movement produced by skeletal muscles that requires energy expenditure, including exercise and everyday tasks.

REM Sleep

A phase of sleep characterized by rapid eye movement, increased brain activity, and vivid dreaming.

Total Sleep Time

The overall duration of sleep taken in a 24-hour period.

Dreaming

A series of thoughts, images, or emotions occurring during sleep, often associated with REM (rapid eye movement) sleep phases.