Posted by **joe** on Wednesday, November 2, 2011 at 5:28pm.

m1 = 2.7 kg block slides on a frictionless horizontal surface and is connected on one side to a spring (k = 40 N/m) as shown in the figure above. The other side is connected to the block m2 = 3.6 kg that hangs vertically. The system starts from rest with the spring unextended.

a) What is the maximum extension of the spring?

m

b) What is the speed of block m2 when the extension is 65 cm?

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