A Small but Dense 2

question 61

Multiple Choice

A small but dense 2.0-kg stone is attached to one end of a very light rod that is 1.2 m long.The other end of the rod is attached to a frictionless pivot.The rod is raised until it is vertical,with the stone above the pivot.The rod is released and the stone moves in a vertical circle with no air resistance.What is the tension in the rod as the stone moves through the bottom of the circle?

• A)20 N
• B)40 N
• C)60 N
• D)80 N
• E)100 N

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Definitions:

Acceptable Name

An alternative name for a chemical compound that is recognized in scientific literature aside from its systematic or IUPAC name.

Compound

A material created by the chemical combination of two or more elements bonded together.

Name

A term or set of terms by which a particular concept or object is identified.

Compound

A compound consisting of two or more elements combined in a precise ratio through chemical bonds.