Consider four "special positions" of the marble: (A) - the marble begins to fall (B) - the cord begins to stretch (C) - the equilibrium position (D) - the marble comes to a momentary stop as shown below. Assume that the zero level of the gravitational potential energy of the system "marble-Earth" is at the level of the table. 31 C D The marble reaches its maximum speed: between positions A and B at position B ●4 between positions B and C at position C between positions C and D at position D
Consider four "special positions" of the marble: (A) - the marble begins to fall (B) - the cord begins to stretch (C) - the equilibrium position (D) - the marble comes to a momentary stop as shown below. Assume that the zero level of the gravitational potential energy of the system "marble-Earth" is at the level of the table. 31 C D The marble reaches its maximum speed: between positions A and B at position B ●4 between positions B and C at position C between positions C and D at position D
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