two block a and b ,each having amass of 320g connected by a light string passing over a smooth light pulley , the horizontal surface on which the block a can slide is smooth . the block a is attached to a string of spring constant 40 n/m whose other end fixed to support 40 cm above
the horizontal surface. find velocity of block at the instant it breaks off the surface below . g = 10 ms^-2
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UP 0 DOWN 0 0 0
