Saved Bookmarks
| 1. |
Two ice skaters A and B approach each other at right angles. A has mass 30 kg and velocity 1 mis and B has a mass of 20 kg and velocity 2 m/s. They meet and stick together. The final velocity of couple is : |
Answer» Solution :Let v = COMPOSITE velocity after COLLISION, Q = ANGLE with the direction of 30 kg mass Then from momentum conservation,  `5vcos theta = 30 xx 1` `50V sin theta =20 xx 2` From equations (1) and (2) `sqrt(50^(2).v^(2)) = sqrt(900 + 1600)` 50v= 50, v= 1m/s |
|