Rotational Motion Question 78
Question: A rod PQ of mass M and length L is hinged at end P. The rod is kepts horizontal by a massless string tied to point Q . When string is cut, the initial angular acceleration of the rod is
Options:
A)
B)
C)
D)
Show Answer
Answer:
Correct Answer: A
Solution:
-
Torque on the rod = Moment of weight of the rod about P
As
From Eqs.(i) and (ii), we get
