Use the Figure to Answer the Next Question

question 9

Multiple Choice

Use the figure to answer the next question. A light rope runs through two frictionless pulleys of negligible mass. A mass, m, is hung from one of the pulleys and a force, F is applied to one end of the rope so that the mass moves at a constant speed.
-What is the force needed to move the mass at a constant speed?

• A) 0
• B) mg
• C) mg
• D) 2mg
• E) 4mg

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Definitions:

Voidable

A legal term describing a contract or transaction that may be declared invalid by one of the parties to the contract.

Minor's Option

The legal ability of a minor to affirm or void contracts and agreements, based on their lack of legal capacity to enter into contracts.

Deposit

An upfront payment or security placed in trust or as a guarantee for the fulfillment of an obligation or purchase.

Majority

More than half of a particular group or amount; often referring to the greater part of a specific population or quantity.