posted by Kate
A 36 kg box hangs from a rope. What is the tension in the rope if the following are true?
(a) The box moves up a steady 5.0 m/s?
(b) The box has vy = 5.0 m/s and is slowing down up at 5.0 m/s2?
a) steady? no acceleration. Tension= mg
b) tension= mg-ma