FIGURE 7-2 Three Applied Forces, F₁ = 20

question 67

Multiple Choice

FIGURE 7-2 Three applied forces, F₁ = 20.0 N, F₂ = 40.0 N, and F₃ = 10.0 N act on an object with a mass of 2.00 kg which can move along an inclined plane as shown in the figure. The questions refer to the instant when the object has moved 0.600 m along the surface of the inclined plane in the upward direction. Neglect friction and use g = 10.0 m/s².
-Refer to Figure 7-2. What is the amount of work done by force F₁ as the object moves up the inclined plane?

• A) 10.0 J
• B) 11.0 J
• C) 12.0 J
• D) 16.0 J
• E) 0 J

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Definitions:

Prelinguistic Vocalization

Sounds and noises produced by infants before they acquire language, used for experimentation with language sounds and communication.

Assimilation

The cognitive process of fitting new information into existing cognitive schemas, perceptions, and understanding.

Schemes

Cognitive structures or patterns of action and thought used to deal with experiences, fundamental to understanding and interacting with the world.

Piaget

Refers to Jean Piaget, a Swiss psychologist known for his pioneering work in the study of child development.