Explanation:
I attached one picture moderator please refer it
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✠ Question Given :
✠ Required Solution :
• At Diagram :
✯ At Highest Point :
• ( θ = 180° , Cos180° = -1 )
• For string not to be sla.ck
✯ At Lowest Point :
• Apply conservation of energy
✠ V = √ 5gr ( min velocity required)
• Putting equation (2) in (1)
✯ At Middle Point :
• By law of conservation of energy
✠ Note :
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Explanation:
I attached one picture moderator please refer it