Under Which of the Following Conditions Can a Ladder Standing

question 17

Multiple Choice

Under which of the following conditions can a ladder standing on a frictionless horizontal floor and leaning against a rough vertical wall be in equilibrium?

• A)The normal force exerted by the floor on the ladder equals the normal force the wall exerts on the ladder.
• B)The weight of the ladder is equal in magnitude to the frictional force the wall exerts on the ladder.
• C)A ladder in this situation cannot be in equilibrium.
• D)The normal force exerted by the floor on the ladder equals the weight of the ladder.
• E)The normal force exerted by the floor on the ladder equals the frictional force the wall exerts on the ladder.

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Definitions:

Monthly Compounding

Interest calculation method where interest is added to the principal sum at the end of each month, compounding the amount over time.

Compounded Quarterly

The process of calculating interest on an initial investment where the interest is reinvested and additional interest is earned on interest, done four times a year.

Compounded Monthly

Compounded monthly refers to the process where interest is added to the principal sum of a loan or deposit so that the added interest also earns interest from then on.

Compounded Monthly

A method where interest is added to the principal every month, allowing the interest to earn interest in subsequent months.