A long thread suspended from a fixed point has a small mass swinging to and fro at its lower end. Then, 1. the potential energy of the mass is minimum in the middle of the swing 2. the kinetic energy is maximum in the middle of the swing 3. the potential energy is always equal to the kinetic energy 4. the sum of the potential energy and the kinetic energy is maximum in the middle of the swing Which of the above statements is/are correct? (a) 1 only (b) 1 and 2 (c) 2 and 4 (d) 1, 2, 3 and 4

A long thread suspended from a fixed point has a small mass swinging to and fro at its lower end. Then, 1. the potential energy of the mass is minimum in the middle of the swing 2. the kinetic energy is maximum in the middle of the swing 3. the potential energy is always equal to the kinetic energy  4. the sum of the potential energy and the kinetic energy is maximum in the middle of the swing Which of the above statements is/are correct? (a) 1 only (b) 1 and 2 (c) 2 and 4 (d) 1, 2, 3 and 4
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