Saved Bookmarks
| 1. |
A bullet of mass 20 grams moving with a velocity of 300m/s gets embedded in a freely suspended wooden block of mass 880 gram. What is the velocity acquired by the block |
|
Answer» Hi friends here your answer given DATA :- mass of bullet = 20÷ 1000 = 2× 10-^2 velocity U1 = 300 m/s mass of wooden block = 880÷1000 = 0.88 kg now law of momentum conservation momentum before collision = momentum after collision mu1 + mu2 = mv1 +mv2 0.02 × 300 + 0 = v ( m1 + m2) 6 = v ( 0.02 + 0.88) 6 = v × 0.9 v = 60 /9 v = 6.66 m/s |
|