A Particle Moves on the X Axis

question 50

Multiple Choice

A particle moves on the x axis.When its acceleration is positive and increasing:

• A)its velocity must be positive
• B)its velocity must be negative
• C)it must be slowing down
• D)it must be speeding up
• E)none of the above must be true

---

Definitions:

PKU

PKU, or Phenylketonuria, is a genetic disorder in which the body cannot metabolize phenylalanine, an amino acid, leading to harmful levels in the body if not treated with a special diet from infancy.

Neurological Damage

Refers to injury or impairment in the nervous system, potentially affecting the brain, spinal cord, or nerves, leading to various physical and cognitive symptoms.

Mental Retardation

An outdated and offensive term formerly used to describe a condition of below-average cognitive ability present from birth or early infancy, now more appropriately referred to as intellectual disability.

Small-For-Date

A term describing infants born with a birth weight below the 10th percentile for their gestational age, often indicating prenatal growth issues.