A Ladder Leans Against a Wall

question 45

Multiple Choice

A ladder leans against a wall.If the ladder is not to slip, which one of the following must be true?

• A)The coefficient of friction between the ladder and the wall must not be zero
• B)The coefficient of friction between the ladder and the floor must not be zero
• C)Both A and B
• D)Either A or B
• E)Neither A nor B

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Definitions:

Eggs

Eggs are oval or round objects laid by female animals, particularly birds, consisting of an outer shell, white albumen, and a yolk, often consumed as food.

Vegetarianism

The dietary practice of abstaining from the consumption of meat, and may also include abstention from by-products of animal slaughter.

Leonardo Da Vinci

A Renaissance polymath known for his contributions to art, science, and invention, including works like the Mona Lisa.

Vegetarian Diet

A dietary choice abstaining from consuming meat, fish, and sometimes, animal by-products, focusing on plants for food.