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A-block-of-mass-0-2kg-rests-on-an-incline-plane-of-30-to-the-horizontal-with-a-velocity-of-12m-s-If-the-coefficient-of-sliding-friction-is-0-16-i-determine-how-far-up-the-plane-the-mass-travels-bef




Question Number 75001 by necxxx last updated on 05/Dec/19
A block of mass 0.2kg rests on an incline  plane of 30° to the horizontal with a  velocity of 12m/s.If the coefficient of  sliding friction is 0.16,  (i)determine how far up the plane the  mass travels before stoping.  (ii)if the block returns,what is the  velocity of the block at the bottom of the  plane.    (g=9.8m/s)
$${A}\:{block}\:{of}\:{mass}\:\mathrm{0}.\mathrm{2}{kg}\:{rests}\:{on}\:{an}\:{incline} \\ $$$${plane}\:{of}\:\mathrm{30}°\:{to}\:{the}\:{horizontal}\:{with}\:{a} \\ $$$${velocity}\:{of}\:\mathrm{12}{m}/{s}.{If}\:{the}\:{coefficient}\:{of} \\ $$$${sliding}\:{friction}\:{is}\:\mathrm{0}.\mathrm{16}, \\ $$$$\left({i}\right){determine}\:{how}\:{far}\:{up}\:{the}\:{plane}\:{the} \\ $$$${mass}\:{travels}\:{before}\:{stoping}. \\ $$$$\left({ii}\right){if}\:{the}\:{block}\:{returns},{what}\:{is}\:{the} \\ $$$${velocity}\:{of}\:{the}\:{block}\:{at}\:{the}\:{bottom}\:{of}\:{the} \\ $$$${plane}. \\ $$$$ \\ $$$$\left({g}=\mathrm{9}.\mathrm{8}{m}/{s}\right) \\ $$
Commented by necxxx last updated on 05/Dec/19
please help
$${please}\:{help} \\ $$
Commented by mr W last updated on 06/Dec/19
language of question is not clear  to understand. on one side the  block rests on the inclined plane,  on the other side the block should  move.
$${language}\:{of}\:{question}\:{is}\:{not}\:{clear} \\ $$$${to}\:{understand}.\:{on}\:{one}\:{side}\:{the} \\ $$$${block}\:{rests}\:{on}\:{the}\:{inclined}\:{plane}, \\ $$$${on}\:{the}\:{other}\:{side}\:{the}\:{block}\:{should} \\ $$$${move}. \\ $$

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