A Pair of Identical Balls Are Connected by a Massless

question 11

Multiple Choice

A pair of identical balls are connected by a massless rod, and thrown straight up into the air. The velocity of the center of mass is initially 17.2 m/s upward. Precisely 1.0 s later, one of the balls is measured to be instantaneously at rest. What is the velocity of the other ball at this time? Ignore air resistance.

• A) 14.8 m/s up
• B) 9.8 m/s down
• C) 7.4 m/s up
• D) 7.4 m/s down

---

Definitions:

Complex Health Care Needs

Medical conditions requiring ongoing intervention, specialty care, or both, often due to chronic illness or disability.

Chronic Sorrow

Ongoing, periodic feelings of grief that arise from living with a chronic illness or condition, either personally or as a caregiver.

Kindergarten Graduation

A ceremonial event marking the completion of kindergarten by young children, celebrating their transition to first grade.

Enucleation

A surgical procedure involving the removal of an organ or tumor, often used in reference to the removal of an eyeball.