Conservation of Energy in Rolling Motion Video Lessons

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Problem: An 8.0 cm diameter, 400 g sphere is released from rest ta the tip of a 2.1 m long, 25 degree incline. It rolls, without slipping, to the bottom.What fraction of its kinetic energy is rotational?

FREE Expert Solution

Moment of inertia of a sphere:

I=25mr2

Rotational kinetic energy:

Krot=12Iω2

Translational kinetic energy:

K=12mv2

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Problem Details

An 8.0 cm diameter, 400 g sphere is released from rest ta the tip of a 2.1 m long, 25 degree incline. It rolls, without slipping, to the bottom.

What fraction of its kinetic energy is rotational?

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Our tutors have indicated that to solve this problem you will need to apply the Conservation of Energy in Rolling Motion concept. You can view video lessons to learn Conservation of Energy in Rolling Motion. Or if you need more Conservation of Energy in Rolling Motion practice, you can also practice Conservation of Energy in Rolling Motion practice problems.