A lump of plasticine weighing 200 g is thrown at an angle of 30° and at a speed of 16 m/s towards the 20 m distant concrete facade of the apartment block so that the lump adheres to the facade for a short time and then falls to the floor. How big is the mechanical energy of the lump just before the collision and how big just after it? How much of the mechanical energy has been converted into other forms of energy (heat)?

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First law of Thermodynamics

The word thermodynamics consists of two words: thermo- and dynamics. Dynamics means the study of motion. The field of thermodynamics is all about the study of the movement of heat. In a more meaningful way, it is stated as the study of the transfer of energy. Energy transfer is something that we encounter in day-to-day life. Automobiles, chemical reactions, refrigerators, and power generators work on the basis of thermodynamic principles.