InterviewSolution
Saved Bookmarks
| 1. |
An object falling through a fluid is observed to have acceleration given by ` a= g- bv` where ` g= gravitational acceleration and (b) is constant. After a long time of rlease. It is observed to fall with constant speed. What must be the value of constant speed ?A. g/bB. b/gC. bgD. b |
|
Answer» Correct Answer - A Here, a = g - bv When an object falls with constant speed `v_c`, its acceleration becomes zero. `therefore g - bv_c = 0` or `v_c = g/b` |
|