Question:
A disc of radius \( 2 m\) and mass \(100 kg\) rolls on a horizontal floor. Its centre of mass has speed of \(20 cm/s.\) How much work is needed to stop it?
A disc of radius \( 2 m\) and mass \(100 kg\) rolls on a horizontal floor. Its centre of mass has speed of \(20 cm/s.\) How much work is needed to stop it?
Updated On: Apr 14, 2025
- \(3J\)
- \(30J\)
- \(2J\)
- \(1J\)
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The Correct Option is A
Solution and Explanation
The correct option is (A) :\(3J\)
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