A Forward Force Acting on the Axle Accelerates a Rolling

question 55

Multiple Choice

A forward force acting on the axle accelerates a rolling wheel on a horizontal surface.If the wheel does not slide the frictional force of the surface on the wheel is:

• A)zero
• B)in the forward direction and does zero work on the wheel
• C)in the forward direction and does positive work on the wheel
• D)in the backward direction and does zero work on the wheel
• E)in the backward direction and does positive work on the wheel

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Definitions:

Suicidality

The risk or tendency towards suicide, including thoughts, plans, and attempts.

Cognitive Rigidity

The tendency to be closed to new ideas or approaches; difficulty in changing mental frameworks or strategies.

Rumination

Focusing on one’s personal concerns and feelings of distress repetitively and passively.

Perfectionism

The need to be or appear to be perfect, or even to believe that it's possible to achieve perfection.