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A 25.0 kg child plays on a swing having support ropes that are 2.10 m long. A friend pulls her back until the ropes are 43.0 from the vertical and releases her from rest.
What is the potential energy for the child just as she is released, compared with the potential energy at the bottom of the swing?
How fast will she be moving at the bottom of the swing?
How much work does the tension in the ropes do as the child swings from the initial position to the bottom?
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What scientific concept do you need to know in order to solve this problem?
Our tutors have indicated that to solve this problem you will need to apply the Motion Along Curved Paths concept. You can view video lessons to learn Motion Along Curved Paths. Or if you need more Motion Along Curved Paths practice, you can also practice Motion Along Curved Paths practice problems.