If a \( 15 \mathrm{~kg} \) ball takes 54 seconds to strike the ground when released from rest, at what height (meter unit) was the ball dropped?

Step 1 ：1. \( t = 54 \mathrm{~s} \)

Step 2 ：2. \( g = 9.81 \mathrm{~m/s^2} \)

Step 3 ：3. \( h = \frac{1}{2}gt^2 \)

Step 4 ：4. \( h = \frac{1}{2}(9.81)(54^2) \)

Step 5 ：5. \( h = 14345.14 \mathrm{~m} \)