The mass of 10kg and 20 kg respectively are connected by a massless spring. A force of 200 N acts on the 200 kg mass. an acceleration of 12 m/s^2,what is the acceleration of 20 kg mass?
(a)12m/s^2 (b) 4m/s^2
(c) 10m/s^2 (d) zero
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it should be 20 kg mass not 200kg mass
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