A Man Pushes an 80-N Crate a Distance of 5

question 48

Multiple Choice

A man pushes an 80-N crate a distance of 5.0 m upward along a frictionless slope that makes an angle of 30°with the horizontal.His force is parallel to the slope.If the speed of the crate decreases at a rate of 1.5 m/s², then the work done by the man is:

• A)-200 J
• B)61 J
• C)140 J
• D)200 J
• E)400 J

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Definitions:

Involuntary Bodily Functions

These are physiological processes that are not under conscious control, such as breathing, heartbeat, and digestion.

Ascending Pain Pathways

The neural pathways that transmit pain signals from the peripheral body to the brain.

Spinal Cord

A bundle of nerves and supportive tissue running from the base of the brain down the center of the back, crucial for transmitting messages between the brain and the body.

Voluntary Motion

Movement that is controlled by the individual consciously, unlike reflex or involuntary movements.