If the Displacement of an Object Is Given in SI

question 4

Multiple Choice

If the displacement of an object is given in SI units by Δx = −5t + t ²,at t = 2 s its velocity and acceleration are,respectively: (Hint: Use dimensional analysis along with the equations for motion with constant acceleration. )

• A) positive,positive.
• B) positive,negative.
• C) negative,negative.
• D) negative,positive.

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Definitions:

Greek

Relating to Greece, its people, or their language.

Cyan/o

A prefix in medical terminology denoting the color blue, often used to describe conditions related to inadequate oxygen levels in the blood.

Iso-

A prefix indicating equality, uniformity, or similarity in certain scientific and technical contexts.

Dia-

A prefix meaning through, across, or apart, used in various medical and scientific terms.