Solve the Problem $h ( t ) = - 16 t ^ { 2 } + 112 t + 20$

question 135

Multiple Choice

Solve the problem.
-A model rocket is launched from a raised platform at a speed of 112 feet per second. Its height in feet is given by $h ( t ) = - 16 t ^ { 2 } + 112 t + 20$ t = seconds after launch) . After how many seconds does
The object reach its maximum height?

• A) 5.5 seconds
• B) 20 seconds
• C) 1.75 seconds
• D) 3.5 seconds

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Definitions:

Exergonic Reaction

Chemical reaction that releases energy; opposite of endergonic reaction.

Oxidation

A chemical reaction involving the loss of electrons from a molecule, which often results in the production of energy.

Citric Acid Cycle

A key metabolic pathway that occurs in the mitochondria, involving a series of chemical reactions used by all aerobic organisms to generate energy through the oxidation of acetate.

NADH

Nicotinamide adenine dinucleotide (reduced form), a coenzyme found in all living cells that plays a critical role in energy production through cellular respiration.