The ball falls freely from a high place, and the height of each bounce after hitting the ground is (2/5) of the height of the previous drop. If the height of the second bounce of the ball is 5.6 meters, then how many meters did the ball fall from?
球从高处自由下落，每次接触地面后弹起的高度是前次下落高度的(2/5)．如果球下落第二次弹起的高度是5.6米，那么球是从多少米的高处落下．
<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">5.6 / (2/5) / (2/5)</gadget>
<output>35</output>

<result>35</result>