Questions
A rigid uniform bar AB of length L slipping from its vertical position on a frictionless floor (as shown in the figure). At some instant of time, the angle made by the bar with the vertical is . Which of the following statements about its motion is/are correct?
detailed solution
Correct option is A
rB=mgℓ2sinθ⇒ Option [A] is correct. [B] Coordinates of point A , x=L2sinθ and y=Lcosθ⇒2xL2+yL2=1 This represents ellipse. Since, there is no external force in horizontal direction, option [C] is correct. ΔXcom=ℓ2−ℓ2cosθ=ℓ2(1−cosθ)⇒ Option [D] is correct.Talk to our academic expert!
Similar Questions
Assume body B to be uniform:
Column-A | Column-B (Torque of normal reaction on body B about centre of mass) | ||
(a) | (F is directed towards| | (p) | Clockwise |
(b) | (q) | Anticlockwise | |
(c) | (r) | Zero | |
(s) | Conclusion cannot be drawn with the information given |
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