An Object Attached to an Ideal Massless Spring Is Pulled

question 18

Multiple Choice

An object attached to an ideal massless spring is pulled across a frictionless surface. If the spring constant is 45 N/m and the spring is stretched by 0.88 m when the object is accelerating at 2.0 m/s², what is the mass of the object?

• A) 20 kg
• B) 17 kg
• C) 22 kg
• D) 26 kg

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Definitions:

Extinction

In psychology, the gradual weakening and eventual disappearance of a conditioned response when the conditioned stimulus is no longer paired with the unconditioned stimulus.

Spontaneous Recovery

The reappearance of a previously extinguished conditioned response after a period of time without exposure to the conditioned stimulus.

Classical Conditioning

The process of acquiring knowledge by associating a naturally existing stimulus with one from the environment.

Extinction Procedure

A process in behavioral psychology that involves the gradual diminishment of a conditioned response by ceasing to pair the conditioned stimulus with the unconditioned stimulus.