If a hollow sphere rolls down an incline, how does its acceleration compare to t

Practice Questions

Q1
If a hollow sphere rolls down an incline, how does its acceleration compare to that of a solid sphere?
  1. Greater
  2. Less
  3. Equal
  4. Depends on mass

Questions & Step-by-Step Solutions

If a hollow sphere rolls down an incline, how does its acceleration compare to that of a solid sphere?
  • Step 1: Understand what a hollow sphere and a solid sphere are. A hollow sphere is empty inside, while a solid sphere is filled with material.
  • Step 2: Learn about moment of inertia. Moment of inertia is a measure of how difficult it is to change the rotation of an object. A hollow sphere has a greater moment of inertia than a solid sphere.
  • Step 3: Know that when objects roll down an incline, their acceleration depends on their moment of inertia. The greater the moment of inertia, the less the acceleration.
  • Step 4: Compare the two spheres. Since the hollow sphere has a greater moment of inertia, it will accelerate less than the solid sphere when both roll down the incline.
  • Moment of Inertia – The moment of inertia is a measure of an object's resistance to changes in its rotation. A hollow sphere has a greater moment of inertia than a solid sphere, affecting its acceleration when rolling.
  • Rolling Motion – Rolling motion involves both translational and rotational motion. The distribution of mass affects how quickly an object accelerates down an incline.
  • Acceleration on an Incline – The acceleration of an object rolling down an incline is influenced by its moment of inertia and the gravitational force acting on it.
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