Three sleds are being pulled horizontally on frictionless horizontal ice using h

Question

Three sleds are being pulled horizontally on frictionless horizontal ice using horizontal ropes. The pull is horizontal and of magnitude 126N . 30>>>B>>20>>>A>>>10>>>>>Pull What is the acceleration of the system? the tension in A? the tension in B?

Explanation / Answer

[30 kg sled]---rope B---[20 kg sled]---rope A---[10 kg sled]----> 125 N force ----------------------------------------------------------------- F = total mass * a Tension = m*a ----------------------------------------------------------------- F = m*a 125 = 60*a a= 2.08 m/s^2

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