In free fall, two balls of masses \(20 \mathrm{~kg}\) and \(10 \mathrm{~kg}\) were dropped from a height. If the ball with the smaller mass reached the ground after \(4 \mathrm{~s}\), what is the difference between the time the two balls reach the ground?

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In free fall, two balls of masses \(20 \mathrm{~kg}\) and \(10 \mathrm{~kg}\) were ...

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