The separation of the two strings at their equilibrium (vertical) positions is d, so the two balls just barely touch each other when both of them at their equilibrium (vertical) positions By convention, level B is chosen as the reference of gravitational potential energy (U), at which both ball #1 and #2 have zero potential energy, i.e., U -U. d : Theory Two identical steel balls with mass and diameter dare suspended by two massless, non-stretchable strings (. balance, 850 Universal Interface, computer. Equipment A pair of metal balls, a pair of velcro pads, two photogates (PASCO Assembly No 0003.06268), vernier calipers, 15 cm ruler. Study elastic and inclastic collisions between two balls. Verify energy conservation law when the potential energy of a hall is converted to its kinetic energy 2. Transcribed image text: Experiment 6 Collision Purpose 1.
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