assume the weight of the hanging down mass to be M2, with the other mass is horizonal movement, and mass M1
net force=m2*g=totalmass*a
m2*g=(M1+M3)a
now tension between them. the tension is pulling mass1
tension=m1*a
or, tension is holding back M2 and
m2g-tension=M2a
either equation willwork, and you should be able to confirm these equations with individual free body diagrams, and UNDERSTAND those (Hint: you will likely see it on a test)
An Atwood's machine consists of two crates of different masses. If the pulley is frictionless and
massless along with a string of negligible mass, find the acceleration of the crates and the
tension in the string
1 answer