A cord passing over a light frictionless pulley has a 7.0-kg mass hanging from one end and a 9.0-kg mass hanging from the other, as seen in Fig. 3-20. (This arrangement is called Atwood’s machine.) Find the acceleration of the masses and the tension in the cord.

Transcribed Image Text:

Gl A 7.0 kg (a) B 9.0 kg FT A 7.0 kg (7.0 kg) g Fig. 3-20 + F₁ 9.0 kg (9.0 kg) g Free-body diagram (b)