7. what is the kinetic energy of a 3-kilogram ball that is rolling at 2 meters per second?
8...
7. what is the kinetic energy of a 3-kilogram ball that is rolling at 2 meters per second?
8. two objects were lifted by a machine. one object had a mass of 2 kilograms, and was lifted at a speed of
2 m/sec. the other had a mass of 4 kilograms and was lifted at a rate of 3 m/sec.
a. which object had more kinetic energy while it was being lifted?
b. which object had more potential energy when it was lifted to a distance of 10 meters? show your
calculation.
Answers: 1
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