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Two ice skaters A and B approach each other at right angles. A has mass 30 kg and velocity 1 m/s and B has a mass of 20 kg and velocity 2 m//s. They meet and stick together. The final velocity of couple is : |
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Answer» Solution :Let v = COMPOSITE velocity after collision, `theta` = angle with the direction of 30 KG mass Thenfrom momentum conservation, `50V cos theta=30xx1` `50v sin theta =20xx2` From EQUATIONS (1) and (2), `sqrt((50)^(2)+v^(2))=sqrt(900+1600)` `50v=50` `v=1m//s` 
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