Kinetic energy varies jointly as the mass and the square of the velocity. A mass of 15 grams and velocity of 7 centimeters per second has a kinetic energy of 147 ergs. Find the kinetic energy for a mass of 5 grams and velocity of 9 centimeters per second.

College Algebra
10th Edition
ISBN:9781337282291
Author:Ron Larson
Publisher:Ron Larson
Chapter3: Polynomial Functions
Section3.5: Mathematical Modeling And Variation
Problem 7ECP: The kinetic energy E of an object varies jointly with the object’s mass m and the square of the...
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Kinetic energy varies jointly as the mass and the square of the
velocity. A mass of 15 grams and velocity of 7 centimeters per
second has a kinetic energy of 147 ergs. Find the kinetic energy
for a mass of 5 grams and velocity of 9 centimeters per second.
A mass of 5 grams and velocity of 9 centimeters per second has a
kinetic energy of ergs.
Transcribed Image Text:Kinetic energy varies jointly as the mass and the square of the velocity. A mass of 15 grams and velocity of 7 centimeters per second has a kinetic energy of 147 ergs. Find the kinetic energy for a mass of 5 grams and velocity of 9 centimeters per second. A mass of 5 grams and velocity of 9 centimeters per second has a kinetic energy of ergs.
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