Solve the Problem $629 \mathrm { lb }$ Is Required to Pull a Boat Up a Ramp Inclined

question 247

Multiple Choice

Solve the problem.
-A force of $629 \mathrm { lb }$ is required to pull a boat up a ramp inclined at $21.0 ^ { \circ }$ with the horizontal. How much does the boat weigh?

• A) \(2350 \mathrm { lb }\)
• B) \(587 \mathrm { lb }\)
• C) \(608 \mathrm { lb }\)
• D) \(1760 \mathrm { lb }\)

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Definitions:

Social Facilitation Hypothesis

A theory suggesting that the presence of others can improve one's performance on tasks, especially those that are simple or well-learned.

Door-In-The-Face Effect

A compliance technique where a larger, unreasonable request is made first, followed by a smaller, more reasonable request that is the actual goal.

Conformity Hypothesis

A theory suggesting that individuals adjust their attitudes, beliefs, or behaviors to align with the norms of a group, often in response to real or imagined group pressure.

Coaction Effect

The phenomenon that individuals perform tasks better or work harder in the presence of others doing the same task.