Question: Question [ 3 ] : The spring constant k = 7 0 0 N m . The masses m A = 1 4 k g

Question [3]: The spring constant k=700Nm. The masses mA=14kg and mB=18kg. The horizontal bar is smooth. At the instant shown, the spring is unstretched and the mass B is moving downward at 1ms. How fast is B moving when it has moved downward 0.2 m from its present position? [20 marks]
Question [ 3 ] : The spring constant k = 7 0 0 N

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