A toy rocket with a mass of 321 grams is launched into the air using a spring. At the apex of the trajectory, the height is 7.5 metres and the velocity is 12.1 m/s. What is the kinetic energy (in J) of the rocket at this location
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A toy rocket with a mass of 321 grams is launched into the air using a spring. At the apex of the trajectory, the height is 7.5 metres and the velocity is 12.1 m/s. What is the kinetic energy (in J) of the rocket at this location
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