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MHT CET 2023 Mathematics question

MathematicsApplication of DerivativesMHT CET 2023

A kite is 120m high and 130m of string is out. If the kite is moving away horizontally at the rate of 39m/sec, then the rate at which the string is being out, is

Answer: (B)

Solution

Let the horizontal distance of the kite be , height (constant) and string length : . When : m. Differentiate: \frac{ds}{dt}\frac{dx}{dt}\frac{ds}{dt}\frac$

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Question ID VK-095401