Kinetic energy varies jointly as the mass and the square of the velocity. A mass of 10 grams and velocity of 5 centimeters per second has a kinetic energy of 50 ergs. Find the kinetic energy for a mass of 5 grams and velocity of 6 centimeters per second. Amass of 5 grams and velocity of 6 centimeters per second has a kinetic energy of ergs.

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