Solve the Problem $19.6 \mathrm {~m} / \mathrm { sec }$

question 31

Multiple Choice

Solve the problem.
-A stone thrown downward with an initial velocity of $19.6 \mathrm {~m} / \mathrm { sec }$ will travel a distance of $s$ meters, where $\mathrm { s } ( \mathrm { t } ) = 4.9 \mathrm { t } ^ { 2 } + 19.6 \mathrm { t }$ and $\mathrm { t }$ is in seconds. If a stone is thrown downward at $19.6 \mathrm {~m} / \mathrm { sec }$ from a height of $294 \mathrm {~m}$ , how long will it take the stone to hit the ground? Round your answer to the nearest second.

• A) \(16 \mathrm { sec }\)
• B) \(4 \mathrm { sec }\)
• C) \(6 \mathrm { sec }\)
• D) \(10 \mathrm { sec }\)

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Definitions:

Amino Acid

Organic compounds that combine to form proteins, serving as the building blocks of life.

Leucine

an essential amino acid used in the biosynthesis of proteins, important for muscle repair and growth.

Poly-A Tail

The string of adenine nucleotides added to the 3' end of a newly synthesized pre-mRNA molecule, playing a role in mRNA stability and translation.

mRNA Export

mRNA export is the process by which mRNA molecules are transported from the nucleus to the cytoplasm following transcription, preparing them for translation into proteins.