Answer :
Final answer:
In physics, when using the standard coordinate system, an object moving downward is typically assigned a negative sign. Therefore, the correct answer is d) diamond.
Explanation:
Merge signs and other warning signs are in the shape of a diamond. For your physics question, by convention, an object moving downward is assigned a negative sign (-).
The sign convention is based on the chosen coordinate system, and in most cases, the upward direction is considered positive, meaning the downward direction would be negative.
Traffic signs, such as merge signs and warning signs, are commonly in the shape of a triangle. The triangular shape is used to draw attention and easily convey important information to drivers. For example, a red triangle with an exclamation mark indicates a warning sign, alerting drivers to potential hazards ahead.
