A Rock,released at Rest from the Top of a Tower,hits

question 65

Multiple Choice

A rock,released at rest from the top of a tower,hits the ground after 1.5 s.What is the speed of the rock as it hits the ground? (g = 9.8 m/s² and air resistance is negligible)

• A)15 m/s
• B)20 m/s
• C)31 m/s
• D)39 m/s

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Definitions:

Molecular Formula

A representation of the number and type of atoms in a molecule but not the structure.

Branched Isomers

Organic compounds having the same molecular formula but different structural formulas due to branching in the carbon chain, affecting their physical and chemical properties.

Methyl Branches

Groups consisting of one carbon atom bonded to three hydrogen atoms (-CH3), attached to the main chain of organic molecules.

Continuous Carbon Chain

Organic chemistry term for a series of carbon atoms connected by single or multiple bonds without branching or forming rings.