QUESTION IMAGE
Question
potential or kinetic? top of your jump on a trampoline (with options: potential, kinetic; and an image of a boy jumping on a trampoline)
To determine if the energy at the top of a jump on a trampoline is potential or kinetic, we recall the definitions: Potential energy (PE) is stored energy due to position, while kinetic energy (KE) is energy of motion. At the top of the jump, the person's velocity is momentarily zero (they stop moving upward before falling back down). Since KE depends on velocity ($KE = \frac{1}{2}mv^2$), and velocity is zero here, KE is zero. However, the person is at a height above the trampoline, so they have gravitational potential energy (stored energy due to their height in a gravitational field). Thus, the energy at the top of the jump is potential energy.
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POTENTIAL