A CD with a Diameter of 12

question 53

Multiple Choice

A CD with a diameter of 12.0 cm starts from rest and with a constant angular acceleration of 1.00 rad/sec² acquires an angular velocity of 5.00 rad/sec. The CD continues rotating at 5.00 rad/sec for 15.0 seconds and then slows to a stop in 12.0 second with a constant angular acceleration. What is the angular distance traveled by a point 4.00 cm from the center, at the time 25.0 seconds from the start?

• A) 107 rad
• B) 193 rad
• C) 205 rad
• D) 237 rad
• E) 274 rad

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Definitions:

Osteoblasts

Bone-forming cells that synthesize the bone matrix and are responsible for bone growth and repair.

Chondrocytes

Chondrocytes are the only cells found within healthy cartilage, responsible for maintaining the cartilaginous matrix.

Periosteum

Bones are encompassed by a rich, vascular connective tissue layer, dense except at the points where joints are formed.

Longitudinal Growth

The increase in length of bones due to the activity in the epiphyseal plates, which contributes to overall height during development.