Two particles are moving with constant speed v such that they are always at constant distance d apart and their velocities are always equal and opposite After what time will they return to their initial positions?
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According to the constraint s described above, the particles are moving in a circular path.
If they both are moving in the same direction that is if the particles are separated by a distance equal to the diameter of the circle on it's circumference, the answer is infinity as their relative speed becomes zero.
If they are moving in opposite directions their relative speeds become 2v. Distance to be covered is 2πr=πd. Hence time taken= (πd)/(2v).
If they both are moving in the same direction that is if the particles are separated by a distance equal to the diameter of the circle on it's circumference, the answer is infinity as their relative speed becomes zero.
If they are moving in opposite directions their relative speeds become 2v. Distance to be covered is 2πr=πd. Hence time taken= (πd)/(2v).
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