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WAEC Physics 2010 Paper

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Question : 12

Total: 50

A vertical string, suspended from a fixed point and having a small mass attached to the free end is set into oscillations. Which of the following statements about the system are correct? i. The potential energy of the mass is a minimum at the middle of the swing ii. Its kinetic energy is a maximum at the middle of the swing iii. The sum of the potential and kinetic energies is constant throughout the swing

i,ii and iii
i and ii only
ii and iii only
i and iii only

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