The physical quantity that is neglected when practicing tailgating is :
Tailgating is the act of driving or following a vehicle very closely and this can be very dangerous as well, during this act the distance between the vehicles is been neglected by the driver.
Distance is the difference in position of an object with time in respect to another object. ( i.e It is a scalar quantity ).
Hence we can conclude that the physical quantity that is neglected when practicing tailgating is Distance.
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