InterviewSolution
Saved Bookmarks
InterviewSolution
| 1. |
A body is moving is down an inclined plane of slope `37^@` the coefficient of friction between the body and the plane varies as `mu=0.3x`, where x is the distance traveled down the plane by the body. The body will have maximum speed. `(sin 37^@ =(3)/(5))` .A. at `x= 1.16 m`B. at `x= 2m`C. at bottommost point of the planeD. at `x = 2.5 m` |
|
Answer» Correct Answer - D `F("net") =mg sin theta -mu ng cos theta` `=mg sin theta-0.3 xmg cos theta`…. (i) At maximum speed `F_("net") =0`. Because after this net force Eq.(i), `F_("net") =0` at `x=(tantheta)/(0.3) =(3/4)/(0.3) =2.5 m` |
|