The snowball was thrown upward, giving it a kinetic energy of 20 kJ. Find the maximum value of the

The snowball was thrown upward, giving it a kinetic energy of 20 kJ. Find the maximum value of the potential energy of the snowball during the entire time of the ascent.

A snowball thrown up will acquire the maximum potential energy at the highest point of its ascent, when all its kinetic energy is converted into potential energy, according to the law of conservation of energy.

Proof: E = Ek1 + En1 = Ek2 + En2.

At the moment of throwing h = 0 m and En1 = 0 J, therefore, Ek1 = Ek2 + En2.

At the highest point of ascent V = 0 m / s and Ek2 = 0 J, therefore, En2 = Ek1 = 20 kJ.