Motion Along Curved Paths Video Lessons

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Problem: A 95.0-kg mail bag hangs by a vertical rope 3.9 m long. A postal worker then displaces the bag to a position 2.9 m sideways from its original position, always keeping the rope taut.What horizontal force is necessary to hold the bag in the new position?As the bag is moved to this position, how much work is done by the rope?As the bag is moved to this position, how much work is done by the worker?

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Problem Details

A 95.0-kg mail bag hangs by a vertical rope 3.9 m long. A postal worker then displaces the bag to a position 2.9 m sideways from its original position, always keeping the rope taut.

What horizontal force is necessary to hold the bag in the new position?

As the bag is moved to this position, how much work is done by the rope?

As the bag is moved to this position, how much work is done by the worker?

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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.