A Shot-Putter Moves His Arm and the 7

question 8

Multiple Choice

A shot-putter moves his arm and the 7.0-kg shot through a distance of 1.0 m,giving the shot a velocity of 15 m/s from rest.Find the average force exerted on the shot during this time.

• A) 197 N
• B) 394 N
• C) 600 N
• D) 790 N

---

Definitions:

Variable Interval

A schedule of reinforcement where a response is rewarded after a varying interval of time, making the timing of the reward unpredictable.

Variable-ratio

A schedule of reinforcement where a response is reinforced after an unpredictable number of responses, leading to high and steady rates of response.

Fixed-ratio

A schedule of reinforcement where a response is rewarded only after a specified number of responses.

Fixed-interval

Refers to a schedule of reinforcement where the first response is rewarded only after a specified amount of time has elapsed, commonly used in behavioral psychology.