Below is a picture of an Atwood's Machine: two masses attached to a frictionless, massless pun (pretty neat how physicists dream up equipment like this, huh?).
The mass of block A is 5.0 kg, and the mass of B is 2.0 kg.
a) What is acceleration of the system when the blocks are released?
b) How long will it take for block A to fall 2.0 m?
30N (572)a
(2AX
a
ta
220

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