A 3-Kg Block Slides Down a Smooth Incline of Length $\circ$

question 74

Multiple Choice

A 3-kg block slides down a smooth incline of length 2 m inclined at 30 ^$\circ$ and hits a level,horizontal rough patch,coming to a stop in 1 m.What is the coefficient of friction between the block and the rough patch?

• A)0.25
• B)0.5
• C)0.33
• D)1.0
• E)0.75

---

Definitions:

Fixed-Ratio

In the context of behavioral psychology, a reinforcement schedule that rewards a response only after a specified number of responses.

Variable-Ratio

A reinforcement schedule in operant conditioning where a response is reinforced after an unpredictable number of responses.

Fixed-Interval

A schedule of reinforcement where the first response is rewarded only after a specified amount of time has elapsed.

Variable-Interval

A schedule of reinforcement where a response is rewarded after an unpredictable amount of time has passed.