A Stone Is Thrown with an Initial Speed of 15 $\degree$

question 82

Multiple Choice

A stone is thrown with an initial speed of 15 m/s at an angle of 53 $\degree$ above the horizontal from the top of a 40-m building. If g = 9.8 m/s² and air resistance is negligible, then what is the magnitude of the vertical velocity component of the rock as it hits the ground?

• A) 30 m/s
• B) 24 m/s
• C) 26 m/s
• D) 29 m/s

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Definitions:

Response Deprivation Theory

The idea that when a contingency restricts access to an activity, it causes that activity to become a reinforcement.

Premack's Principle

A principle stating that more probable behaviors can serve as reinforcers for less probable behaviors.

High-Probability Activities

Activities that an individual is highly likely to engage in, often used in behavior modification by allowing access to them as a reward.

Reinforcing

Strengthening a behavior by providing a consequence that will increase the likelihood of the behavior's recurrence.