A Block of Mass M Starts from Position 1 and Moves

question 38

Multiple Choice

A block of mass m starts from position 1 and moves up a frictionless inclined plane with an initial speed v. At some later time the block has moved down the plane and at position 2 has a speed u. If a and b are the heights above the bottom of the plane, the magnitude of u can be determined from

• A) u² = v² - 2g(a - b)
• B) u² = v² + 2g(a + b)
• C) u² = v² + 2g(a - b)
• D) u² = v² + 2g(b - a)
• E) u² = v² + g(a - b)

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Definitions:

Reinforcement

In operant conditioning, any event that strengthens, or increases the frequency of, a desired behavior.

Strengthen Behaviour

The process of increasing the likelihood that a behavior will be repeated through reinforcement or reward.

Learning Theorists

Scholars and psychologists who study and develop theories about how people acquire knowledge, skills, attitudes, and behaviors.

Learning Process

The acquisition of knowledge or skills through study, experience, or teaching, which leads to a change in behavior or understanding.