The stone was cast at an angle of 60 to the horizon at

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Description The stone was cast at an angle of 60 to the horizon at

The stone was cast at an angle of 60 to the horizon at a speed of 15 m / s. Find the kinetic, potential and total energy of the stone one second after the start of the motion; at the highest point of the trajectory. Weight of stone 0.2 kg. Resistance to air is neglected.

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Task 11120. A detailed solution with a brief description of the condition, formulas and laws used in the solution, the derivation of the calculation formula and the answer.
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