If an Average-Sized Man Falls with a Parachute, Then His

question 39

Multiple Choice

If an average-sized man falls with a parachute, then his velocity , in feet per second, t seconds into the fall is given by . ​
During which period will his velocity be between 9.99 and 12.99 feet per second? Round to two decimal places.

• A) From 0.65 seconds on
• B) From 9.77 seconds on
• C) From 0.43 to 0.65 seconds into the fall
• D) From 4.88 to 9.77 seconds into the fall

---

Definitions:

Subsidence

The sinking or settling of the Earth's surface, often caused by natural processes such as erosion or human activities like mining.

Subduction Zones

Regions of the Earth's crust where one tectonic plate moves under another, leading to volcanic activity and earthquakes.

Mantle Upwellings

The upward movement of the Earth's mantle material, which can lead to volcanic activity and the formation of new crust at mid-ocean ridges.

Continental Collisions

The process where two or more continental plates converge, leading to mountain building, seismic activity, and crustal deformation.