Three Children Are Pulling on a Rotatable Platform on a Playground

question 44

Multiple Choice

Three children are pulling on a rotatable platform on a playground. The platform has a radius of 3.80 m. In the picture, two children are pulling with equal forces of 40.0 N in an attempt to make the platform rotate clockwise. The third child applies a force of 60 N as shown. What is the net torque on the platform? Note: "ccw" is counterclockwise and "cw" is clockwise.

• A)76 N . m, ccw
• B)76 N . m, cw
• C)290 N . m, ccw
• D)290 N . m, cw
• E)0 N . m

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Definitions:

Ingratiation

A psychological technique involving the use of flattery or other forms of manipulation to influence someone or gain their favor.

Legitimate Power

A form of authority where power is exercised through formal or official positions within an organizational hierarchy.

Status Differentials

The variations in prestige, authority, or rank among members within a social group or organization.

Polite Request

A respectfully framed appeal or petition made to someone.