a block of mass 2.5 kg is kept on a rough horizontal surface . it is found that the block doesn't slide if a horizontal force less than 15 n applied on it also it is found that it takes 5 sc to slide through the first 10 m if a horizontal force of 15 n is applied and the blocks is gently pushed to start the motion . the values of coefficient of static and kinetic friction between the block and the surface are take g as 1p ms² .
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