Does the following contradict the first law of thermodynamic

Does the following contradict the first law of thermodynamics? A baseball placed on a table spontaneously jumps to another table that is 10 ft higher. When the process is over, the temperature of the ball has fallen so its specific internal energy has also fallen by 0.01285 Btu/lbm. (Hint: Calculate g·h in units of Btu/lbm! Use 4 significant digits. )

Solution

yes because first law nothing but consrvation of energy so here internal energy cannot be converted to potential energy