Solve
-An Object Is Thrown Upward from the Top of a 160-Foot

question 361

Multiple Choice

Solve.
-An object is thrown upward from the top of a 160-foot building with an initial velocity of 48 feet per second. After $t$ seconds, the height $h ( t )$ of the object is given by the function $h ( t ) = - 16 t ^ { 2 } + 48 t + 160$ . Find how long it takes the object to hit the ground.

• A) \(5 \mathrm { sec }\)
• B) \(10 \mathrm { sec }\)
• C) \(160 \mathrm { sec }\)
• D) \(2 \mathrm { sec }\)

---

Definitions:

Universal

Something that is widespread or applicable in all cases, common to all people or situations without exception.

Common Ancestor

The most recent individual from which all organisms in a group are directly descended.

Gene

A sequence of DNA or RNA that codes for a molecule that has a function, acting as the basic unit of heredity in living organisms.

DNA Sequence

The order of nucleotides in a segment of DNA, determining genetic information and characteristics of living organisms.