Initially,a Small 2

question 8

Multiple Choice

Initially,a small 2.0-kg rock is whirling at the end of a very thin string in a circular path of radius 0.75 m on a horizontal frictionless surface,as shown in the figure.The initial tangential speed of the rock was 5.0 m/s.The string has been slowly winding around a vertical rod,and a few seconds later the length of the string has shortened to 0.25 m.What is the instantaneous speed of the mass at the moment the string reaches a length of 0.25 m?

• A)3.9 m/s
• B)9.3 m/s
• C)15 m/s
• D)225 m/s
• E)75 m/s

---

Definitions:

Discharge Improvement

The process or act of a patient's condition becoming sufficiently better to be released from a healthcare facility.

Patient Assessment

The process by which healthcare professionals gather essential information about a patient's physical, psychological, and social health to determine the next steps in their care.

Health Care Worker

An individual engaged in the provision of health care services, including nurses, doctors, technicians, and others.

Assessment Interview

A structured discussion aimed at gathering comprehensive information about a person or situation to inform decisions or diagnosis.