A 20-Kg Block Slides Down a Frictionless Incline from Point a a to Point

question 32

Multiple Choice

A 2.0-kg block slides down a frictionless incline from point A to point B.A force (magnitude P = 3.0 N) acts on the block between A and B,as shown.Points A and B are 2.0 m apart.If the kinetic energy of the block at A is 10 J,what is the kinetic energy of the block at B?

• A)27 J
• B)20 J
• C)24 J
• D)17 J
• E)37 J

---

Definitions:

Tidal Inspiration

The normal process of taking air into the lungs during breathing at rest without extra effort.

Tidal Expiration

The process of passive exhaling in the breathing cycle where air is expelled from the lungs due to the natural recoil of the chest and lungs.

Forced Expiration

The act of expelling air from the lungs with effort, beyond the usual passive expiration, often requiring use of additional muscles.

Residual Volume

The volume of air remaining in the lungs after a forced exhalation, preventing lung collapse and ensuring continuous gas exchange.