Solve-A-smooth-sphere-A-of-mass-2kg-and-moving-with-speed-6ms-1-collides-obliquely-with-a-smooth-sphere-B-of-mass-4kg-just-before-the-impact-B-is-stationary-and-the-velocity-of-A-makes-an-angle-

Question Number 200738 by Calculusboy last updated on 22/Nov/23

$$\boldsymbol{{Solve}}:\:\boldsymbol{{A}}\:\boldsymbol{{smooth}}\:\boldsymbol{{sphere}}\:\boldsymbol{{A}},\boldsymbol{{of}}\:\boldsymbol{{mass}}\:\mathrm{2}\boldsymbol{{kg}}\:\boldsymbol{{and}} \\ $$$$\boldsymbol{{moving}}\:\boldsymbol{{with}}\:\boldsymbol{{speed}}\:\mathrm{6}\boldsymbol{{ms}}^{−\mathrm{1}} \boldsymbol{{collides}}\:\boldsymbol{{obliquely}}\: \\ $$$$\boldsymbol{{with}}\:\boldsymbol{{a}}\:\boldsymbol{{smooth}}\:\boldsymbol{{sphere}}\:\boldsymbol{{B}}\:\boldsymbol{{of}}\:\boldsymbol{{mass}}\:\mathrm{4}\boldsymbol{{kg}}.\:\boldsymbol{{just}}\:\boldsymbol{{before}}\:\boldsymbol{{the}}\:\boldsymbol{{impact}}\:\boldsymbol{{B}}\:\boldsymbol{{is}} \\ $$$$\boldsymbol{{stationary}}\:\boldsymbol{{and}}\:\boldsymbol{{the}}\:\boldsymbol{{velocity}}\:\boldsymbol{{of}}\:\boldsymbol{{A}}\:\boldsymbol{{makes}} \\ $$$$\boldsymbol{{an}}\:\boldsymbol{{angle}}\:\boldsymbol{{of}}\:\mathrm{10}°\:\boldsymbol{{with}}\:\boldsymbol{{the}}\:\boldsymbol{{lines}}\:\boldsymbol{{of}}\:\boldsymbol{{centers}}\:\boldsymbol{{of}}\:\boldsymbol{{the}}\:\boldsymbol{{two}}\:\boldsymbol{{sphere}}. \\ $$$$\boldsymbol{{The}}\:\boldsymbol{{coefficient}}\:\boldsymbol{{of}}\:\boldsymbol{{restitution}}\:\boldsymbol{{between}}\:\boldsymbol{{the}} \\ $$$$\boldsymbol{{spheres}}\:\boldsymbol{{is}}\:\frac{\mathrm{1}}{\mathrm{2}}.\:\boldsymbol{{Find}}\:\boldsymbol{{the}}\:\boldsymbol{{magnitude}}\:\boldsymbol{{and}}\: \\ $$$$\boldsymbol{{directions}}\:\boldsymbol{{of}}\:\boldsymbol{{the}}\:\boldsymbol{{velovities}}\:\boldsymbol{{of}}\:\boldsymbol{{A}}\:\boldsymbol{{and}}\:\boldsymbol{{B}} \\ $$$$\boldsymbol{{immediately}}\:\boldsymbol{{after}}\:\boldsymbol{{the}}\:\boldsymbol{{impact}}. \\ $$

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