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**can any of you guys help to understand kinetic energy???**

when we apply kinetic energy conservation...should we split the velocity into two components???

eg)))))

two blocks of mass m are connected by a spring and are both given a velocity v at an angle of 45 degree with the horizontal(they lie on the horizontal)

..assuming no friction is present...

what will be the maximum elongation of the spring??

i used by equating 1/2 k x2 with the initial ke of the two masses along the horizontal i.e.vcos45???is it correct???pls help me(no vertical motion)