In the context of motion, an "envelope" refers to a mathematical or graphical representation that describes the outer limits or boundary of a set of curves or functions. When discussing motion, this can often relate to the trajectory of a moving object or the behavior of a system over time. In particular, envelopes can refer to: 1. **Envelope Curves in Kinematics:** In kinematics, the envelope might describe the maximum or minimum limits of a trajectory as a function of time.
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