A particle moving in a straight line covers a half of the total distance with the speed of 3m/s. the other half of the distance is covered in two equal tine intervals with the speed 4.5m/s and 7.5m/s. the average speed of the particle during this motion is?
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Let the total distance covered by the particle be D and the total length of the time interval be T. Thus, the average speed of the particle is equal to 8.0m/s.
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