A 050-Kg Ball on the End of a Rope Is Moving

question 8

Multiple Choice

A 0.50-kg ball on the end of a rope is moving in a vertical circle of radius 3.0 m near the surface of the Earth where the acceleration due to gravity, g, is 9.8 m/s2. Point A is at the top of the circle; C is at the bottom. Points B and D are exactly halfway between A and C.
-The ball moves on the circle from A to C under the influence of gravity alone. If the kinetic energy of the ball is 35 J at A, what is its kinetic energy at C?

• A)zero joules
• B)29 J
• C)35 J
• D)44 J
• E)64 J

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Definitions:

Compound A

A placeholder name used to refer to a specific but unidentified chemical substance in scientific discussions.

Chemical Formula

A representation of a substance using symbols for its constituent elements and numerical values indicating the number of atoms of each element.

Stereochemical

Pertaining to the spatial arrangement of atoms in molecules and the effect of this arrangement on the chemical and physical properties of substances.

Major Organic

Refers to the primary or most significant organic molecule or compound resulting from an organic synthesis or reaction.