A pendulum bob has potential energy U₀ when held taut in a horizontal position. The bob falls until it is 30° away from the horizontal position, when it has potential energy U_A. It continues to fall until the string is vertical, when it has potential energy U_B. Compare its potential energies at O, A, and B. A) U₀ = U_A = U_B. B) U_A − U_B = 2U₀. C) U_A − U_B = U₀ − U_A. D) U₀ = U_B = 2U_A. E) U₀ − U_A = 2(U_A − U_B).

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The Answer of A pendulum bob has potential energy U₀ when held taut in a horizontal position. The bob falls until it is 30° away from the horizontal position, when it has potential energy U_A. It continues to fall until the string is vertical, when it has potential energy U_B. Compare its potential energies at O, A, and B. A) U₀ = U_A = U_B. B) U_A − U_B = 2U₀. C) U_A − U_B = U₀ − U_A. D) U₀ = U_B = 2U_A. E) U₀ − U_A = 2(U_A − U_B).

A Pendulum Bob Has Potential Energy U0 When Held Taut

A Pendulum Bob Has Potential Energy U₀ When Held Taut