1.

A block of mass `2 kg` is given a push for a moment horizontally and then the block starts sliding over a horizontal plane. The graph shows the velocity`-` time of the motion. The co`-` efficient of sliding friction between the plane and the block is `:` A. `0.02`B. `0.20`C. `0.04`D. `0.40`

Answer» Correct Answer - B
The magnitude of declaration from graph is
`a=(8-0)/(4-0)=2m//s^(2)`
The declaration of block is
`a=mug :. Mu=(a)/(g)=0.2`


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