A pendulum of length 2m lift at P. When it reaches Q, it losses 10% of its total energy due to air resistance. The velocity at Q is
Text Solution
Verified by ExpertsThe correct answer is:
A
If v is velocity of pendulum at Q and 10% energy is lost while moving from P to Q
Hence, by applying conservation of between P and Q
⇒ ⇒ 
⇒ ⇒ 
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