An Automobile Travels Due North with a Speed of 77

question 19

Multiple Choice

An automobile travels due north with a speed of 77 km/h that is decreasing. All forces considered, the unbalanced force acting on the auto is

• A) zero.
• B) southward.
• C) northward.
• D) downward.
• E) upward.

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Definitions:

Electromagnet

A type of magnet in which the magnetic field is produced by an electric current.

Fiber Optic Sensors

Devices that use optical fibers to detect changes in light or other optical properties for sensing applications.

Electrical Interference

Noise or disturbance in electrical circuits caused by external sources, which can compromise the performance of electronic equipment.

Light Signals

Visual indicators used in various contexts (like traffic control, industrial machinery) to convey information or warnings.