Three blocks A, B and C of m asses 4kg, 2kg and lkg respectively are in con tact on a frictionless surface, as show n. If a force of 14 N is applied o n th e 4kg b lo ck , th e n th e c o n ta c t fo rce betw een A and B is

Three blocks A, B and C of m asses 4kg, 2kg and lkg respectively are i

1.	Three blocks A, B and C of m asses 4kg, 2kg and lkg respectively are in con tact on a frictionless surface, as show n. If a force of 14 N is applied o n th e 4kg b lo ck , th e n th e c o n ta c t fo rce betw een A and B is
Answer» 2n 6N 8n 18n SOLUTION :Acceleration of system`=(f_(net))/( M_(total )) ` `= (14)/(4+2+1) = 2 m//s^(2)` thecontactforcebetween4 KG&2kg blockwillmove 2kg &1kgblockwithsameacceleration so`F_(CONTACT ) = (2+ 1 )a= 3 (2) = 6N`