InterviewSolution
Saved Bookmarks
| 1. |
23. nsmall balls each of mass 'm impinge clastically cach second on a surface with velocity u. The force experiencedby he surface will be:(C) 4 mnu(D) mu2(A) mnu(B) 2 mnu |
|
Answer» for 1 ball the impulse provided will be change in momentum = mu -(-mu) = 2mu so F.t = 2mu F = 2mu/t = 2mu now for n ball..the total value is 2mnu. option B |
|