span style=font-weight: 400;A smooth block is released at rest on math xmlns=http://www.w3.org/1...

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span style=font-weight: 400;A smooth block is released at rest on math xmlns=http://www.w3.org/1998/Math/MathML class=wrs_chemistrymn45/mnmo°/mo/matha /spanspan style=font-weight: 400;incline and then slides a distance math xmlns=http://www.w3.org/1998/Math/MathML class=wrs_chemistrymo/momi mathvariant=normald/mimo/mo/math /spanspan style=font-weight: 400;. The time taken to slide is math xmlns=http://www.w3.org/1998/Math/MathML class=wrs_chemistrymo/momi mathvariant=normaln/mimo/mo/math/spanspan style=font-weight: 400; times as much to slide on rough incline than on a smooth incline. The coefficient of friction is/span
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