At a playground, a child on a swing has a speed of 2.12 m/s when the swing is at the lowest point. To what maximum vertical height does the child rise?
Mechanical energy is the sum of all potential energies associated with an object and its kinetic energy. Kinetic energy is the energy of movement. All energies are measured in joules and sometimes when potential energy is equated with kinetic energy the mass of the object is irrelevant.
Answer and Explanation:
The child will reach a vertical height of 0.229 meter.
We'll equate the kinetic energy of the child to the gravitational potential energy of the...
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from AP Physics 1: Exam PrepChapter 8 / Lesson 8