# Answer to Question #18261 in Mechanics | Relativity for Janice

Question #18261

A model rocket with a mass of 1.4kg is launched straight up at a speed of 43m/s. 1. What is the rocket's kinetic energy when it takes off? 2. What is the rocket's total energy when it takes off? 3. When the rocket reaches its maximum height, what is its kinetic energy?

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