Saved Bookmarks
| 1. |
A small ball of mass m hits the cylinder which is hinged at top and free to rotate in vertical plane as shown in figure. Mass of cylinder is M. Linear momentum of system (ball+cylinder)A. Remains conserved if y=RB. Remains conserved if `y=(3)/(2)R`C. Remains conserved if `y=(7)/(5)R`D. Cannot be conserved for any value of y. |
|
Answer» Correct Answer - B muy`=mVy+(3)/(2)MR^(2)omega` where u is speed of ball before collision, V speed of ball after collision and `omega` is angular speed of cylinder after collision. `m u=mV+Mromega(COM)` `thereforey=(3R)/(2)` |
|