if a string of length L has tension T, when we chop it up into 3 equal pieces (of length L/3) , then tension experience by each string individually is still T... why? shouldn't it be T/3? issn't this analogous to a string pulling 3 blocks (each connected by a horizontal string and has mass m) horizontally together ? which means T = 3ma so for the same acceleration, the first block has tension T, 2nd block has tension 2/3T and the third block has tension 1/3 T . so what gives ? thanks for the help!