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This equipment works for calculate the trajectory of the horizontal projectile motion object, find the initial speed

Can verify the conservation of momentum and conservation of motion energy in elastic collision within the allowable error range

Need to be used with physical balance, blank paper, carbon paper, etc. for a batter experiment effect

Physics experiment equipment have simple structure and convenient operation, which is conducive to group experiment

This teaching aid can make mechanics knowledge more vivid and intuitive, and stimulate students' learning interest