Physics-
General
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Question

Two blocks of masses 10 kg and 20 kg are connected by a massless spring and are placed on a smooth horizontal surface. A force of 200 N is applied on 20 kg mass as shown in the diagram. At the instant, the acceleration of 10 kg mass is 12 text end text m s to the power of negative 2 end exponent, the acceleration of 20 kg mass is,

  1. 4 text end text m s to the power of negative 2 end exponent    
  2. 12 text end text m s to the power of negative 2 end exponent    
  3. 20 text end text m s to the power of negative 2 end exponent    
  4. 8 text end text m s to the power of negative 2 end exponent    

The correct answer is: 4 text end text m s to the power of negative 2 end exponent

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