prove that the tension in the two parts of the string are equal!!!!!!
106the string is continous naa? then tension will be same.
If u cant understand see like this
Suppose the string on horizontal table exerts force T on the mass m. Analyse the forces on the element dx of string adjacent to that point (i.e. the point at which string touches m). The forces are T to right and T' (say) to left by next particle. As surface is smooth and the string is weightless there is no additional hori. force. So T' = T
Continuing this process the tension will be T everywhere.
In the vertical section Weight =0 So only vertical forces are T upward and T' downward. So T'=T
9gud Q
asish is right
many ppl get confused on the reason why it shud be equal
always remember that
" T of a massless continuous string is uniform as long as some external force like friction doesnt act "
eg T maynot be uniform in a pulley with friction
