A Yoyo with Moment of Inertia I and Mass M

question 68

Multiple Choice

A yoyo with moment of inertia I and mass m is hung using a light string over a frictionless pulley. A force F is applied to the other end of the string. The yoyo is allowed to unwind. As the yoyo unwinds, the force needed to stop the pulley from rotating is _____ the weight mg.

• A) less than
• B) equal to
• C) greater than
• D) depends how fast the yoyo is unwinding
• E) unable to tell

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Definitions:

Filtration Slits

are gaps between the podocyte processes in the kidneys through which blood filtration occurs.

Capillary Pores

Capillary pores refer to tiny openings in the surface of materials or biological tissues that facilitate the movement of fluids through capillary action.

Capsular Hydrostatic Pressure

The pressure within the capsule of a joint or within the Bowman's capsule in the kidneys, influencing filtration rates.

Bowman Capsule

A cup-like sac at the beginning of the tubular component of a nephron in the kidney, which performs the first step in the filtration of blood to form urine.