A Mass M Is Hanging on a String That Passes

question 40

Multiple Choice

A mass m is hanging on a string that passes over a pulley and is then attached to another mass 3m that is resting on a horizontal table. Neglect friction. Mass m is held motionless and is then released. When it has fallen a distance h, it will have a speed v which can be calculated from the formula

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Definitions:

Brain's Cortex

The outer layer of the cerebrum, involved in high-level brain functions such as thought, language, memory, and consciousness.

Endorphins

Natural chemicals in the body that interact with brain receptors to reduce pain and stimulate feelings of pleasure or euphoria.

Heroin

An opioid drug made from morphine, a natural substance taken from the seed pod of various opium poppy plants, which is highly addictive and illegal.

Effects

Changes that result from specific actions or causes.