a) if the system is going up with a const. velocity of
2(m)/(s)
what are the tensions,
T_(1),T_(2),T_(3)
? b) if
a=2(m)/(s^(2))
up
T_(1),T_(2),J_(3)=
? c) if
T_(3)=21N
what is the acceleration and
T_(2),T_(3)
?