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Physics · WORK, ENERGY AND POWER
हिन्दीA raindrop falling from a great height attains terminal speed when the opposing drag force balances gravity. If a falling raindrop of mass \( 3.5\times 10^{-5}\text{ kg} \) has attained a terminal speed of \( 9.0\text{ m s}^{-1} \), its kinetic energy is closest to:
Correct answer · Option 1
\( 1.4\times 10^{-3}\text{ J} \)
Explanation
\( K = \frac{1}{2} m v^2 = \frac{1}{2}(3.5\times 10^{-5})(81) = 1.4175\times 10^{-3}\text{ J} \approx 1.4\times 10^{-3}\text{ J} \).
