KIDS TRIVIA

Detailed explanation-1: -If you jumped into the tunnel, you’d fall down towards the center of the Earth, accelerating constantly, thanks to gravity. By the time you reached the halfway point, after falling for 21 minutes, you’d be traveling at 28, 000 kilometers per hour.

Detailed explanation-2: -Curiously, Klotz found that he got almost exactly the same answer-38 minutes flat-if he simply assumed that the force of gravity remained constant and equal to the value at the surface as an object plummeted toward the center.

Detailed explanation-3: -You end up stuck floating at the center of the earth. What if the tunnel was completely evacuated of all its air? Without air, there would be no air resistance. You would therefore accelerate to incredible speeds as you fall, reaching a maximum speed on the order of tens of thousands of kilometers per hour .