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A body of mass 0.4 kg is tied to one ...

A body of mass 0.4 kg is tied to one end of a string and the other end of the string is tied to a small pivot on a vertical wall . Calculate the minimum speed of the body required at its lower most pint to avoid slacking of string at any point in its motion along the vertical circle of radius 1 m .

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To solve the problem, we need to determine the minimum speed of the body at its lowest point to ensure that the string remains taut throughout the vertical circular motion. ### Step-by-Step Solution: 1. **Identify the Given Values:** - Mass of the body, \( m = 0.4 \, \text{kg} \) (not directly needed for speed calculation) - Radius of the vertical circle, \( r = 1 \, \text{m} \) - Acceleration due to gravity, \( g = 9.8 \, \text{m/s}^2 \) ...
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