A Disk Is Free to Rotate on a Fixed Axis

question 39

Multiple Choice

A disk is free to rotate on a fixed axis.A force of given magnitude F, in the plane of the disk, is to be applied.Of the following alternatives the greatest angular acceleration is obtained if the force is:

• A)applied tangentially halfway between the axis and the rim
• B)applied tangentially at the rim
• C)applied radially halfway between the axis and the rim
• D)applied radially at the rim
• E)applied at the rim but neither radially nor tangentially

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Definitions:

Sun Exposure

The amount of time spent in the sunlight, having both positive effects, like vitamin D synthesis, and negative effects, such as the risk of skin cancer.

Skin Check

An examination of the skin to detect any changes or abnormalities, often for cancer screening.

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Asymmetric enlargement of one breast compared to the other, which can arise due to various conditions like hormonal changes or growth abnormalities.

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Discomfort or pain in the breast area, often related to hormonal changes, injury, or infection.