Saved Bookmarks
| 1. |
Two bodies of masses 4.kg and 16 kg at rest to acted upon by same force. The ratio of timesrequired to attain the same speed is, |
|
Answer» e ratio of times to attain the same speed is 1 : 4Explanation: VELOCITY for mass 1 kg = v 1 Taking velocity for mass 4 kg = v2Given that e1 = e 2 Equating the above terms and simplifying, we GET, Now the momentum is given by:Momentum for mass 1 kg = P1 Momentum for 4 kg mass = p2 P1 = 1 × v 1 and P 2 =4 × v 2Then P1 / P2 = 1 / 4 = 1 : 4Thus the ratio of times to attain the same speed is 1 : 4 |
|