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Work, Energy, and Power — Physics STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 SciencePhysicsWork, Energy, and Power1 Mark
Question
Two equal masses, one at rest and another moving undergo elastic oblique collision. If one mass goes at an angle $\frac{\pi}{3}$with its original direction of motion, what is the direction of motion of the other?
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Answer

The direction of the other mass is at an angle$\Big(\frac{\pi}{3}-\frac{\pi}{3}\Big),\text{i.e.},\frac{\pi}{6}\text{ or }30^\circ.$

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