Saved Bookmarks
| 1. |
Figure shows a thin rod (mass M, length L) suspended in a vertical plane by tying ideal strings at ends A and B. Initially, rod makes an angle 30^(@) with horizontal and is at rest. Now, the string connected to the end B is cut. Let T be the tension in the string connected to A and a_(A) be the magitude of acceleration of point A just after the cutting event. Pick correct option (s): |
|
Answer» `T=(3mg)/13` `T l/2 COS THETA=(ml^(2))/12 alpha` By constraints, `a=(alpha l)/2 costheta` Thus, `T=(mg).(1+3cos^(2)theta)` and `a_(A)=(3gsinthetacostheta)/(1+3cos^(2)theta)` 
|
|