Consider-the-situation-shown-in-figure-in-which-a-block-P-of-mass-2-kg-is-placed-over-a-block-Q-of-mass-4-kg-The-combination-of-the-blocks-are-placed-on-inclined-plane-of-inclination-37-with-horizon

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Question Number 21819 by Tinkutara last updated on 10/Oct/17

$$\mathrm{Consider}\mathrm{the}\mathrm{situation}\mathrm{shown}\mathrm{in}\mathrm{figure}$$$$\mathrm{in}\mathrm{which}\mathrm{a}\mathrm{block}P\mathrm{of}\mathrm{mass}2\mathrm{kg}\mathrm{is}\mathrm{placed}$$$$\mathrm{over}\mathrm{a}\mathrm{block}Q\mathrm{of}\mathrm{mass}4\mathrm{kg}.\mathrm{The}$$$$\mathrm{combination}\mathrm{of}\mathrm{the}\mathrm{blocks}\mathrm{are}\mathrm{placed}\mathrm{on}$$$$\mathrm{inclined}\mathrm{plane}\mathrm{of}\mathrm{inclination}37°\mathrm{with}$$$$\mathrm{horizontal}.\mathrm{The}\mathrm{coefficient}\mathrm{of}\mathrm{friction}$$$$\mathrm{between}\mathrm{Block}Q\mathrm{and}\mathrm{inclined}\mathrm{plane}\mathrm{is}$$$${\mu }_2\mathrm{and}\mathrm{in}\mathrm{between}\mathrm{the}\mathrm{two}\mathrm{blocks}\mathrm{is}{\mu }_1.$$$$\mathrm{The}\mathrm{system}\mathrm{is}\mathrm{released}\mathrm{from}\mathrm{rest},\mathrm{then}$$$$\mathrm{when}\mathrm{will}\mathrm{be}\mathrm{the}\mathrm{frictional}\mathrm{force}$$$$\mathrm{acting}\mathrm{between}\mathrm{the}\mathrm{block}\mathrm{is}\mathrm{zero}?$$$$\left(\mathrm{p}\right){\mu }_1=0.4;{\mu }_2=0$$$$\left(\mathrm{q}\right){\mu }_1=0.8;{\mu }_2=0.8$$$$\left(\mathrm{r}\right){\mu }_1=0.4;{\mu }_2=0.5$$$$\left(\mathrm{s}\right){\mu }_1=0.5;{\mu }_2=0.4$$$$\left(\mathrm{t}\right){\mu }_1=0;{\mu }_2=0.4$$

Commented by Tinkutara last updated on 04/Oct/17

Commented by math solver last updated on 05/Oct/17

$$isitmulticorrectmatrix?$$

Commented by Tinkutara last updated on 05/Oct/17

$$\mathrm{Yes}.$$

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