The discussion centers on calculating the increase in kinetic energy of a 9 kg mass subjected to a net force of 14 N over a distance of 8 m. The correct approach involves using the kinetic energy formula KE = 1/2 mv², where the acceleration must first be determined using Newton's second law (F = ma). The participant initially misapplied the work-energy principle, leading to incorrect calculations. The correct increase in kinetic energy can be derived from the work done by the net force.
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Well, one has acceleration times distance, but something is missing, like a factor of 2. Then that would give one the change in the square of the velocity.JohnJay said:8 x 14
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9 = 12.44 but its wrong