A Ball of Mass M, at One End of a String

question 38

Multiple Choice

A ball of mass m, at one end of a string of length L, rotates in a vertical circle just fast enough to prevent the string from going slack at the top of the circle. The speed of the ball at the bottom of the circle is:

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Definitions:

Decentration

Simultaneous focusing on more than one dimension of a problem, so that flexible, reversible thought becomes possible.

Ultrasound

A diagnostic medical procedure that uses high-frequency sound waves to produce images of structures within the body, such as organs and vessels.

Prenatal Development

The process of growth and development within the womb from conception to birth, covering stages from zygote, embryo, to fetus.

Adolescent Egocentrism

The tendency for adolescents to focus on themselves and what others think of them, often accompanied by a sense of uniqueness and invincibility.