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A uniform rod of mass  and length  is suspended by means of two light inextensible strings as shown in figure. Tension in one string immediately after the other string is cut is

a)

b)

c)

d)

 



Question ID - 52668 | SaraNextGen Top Answer

A uniform rod of mass  and length  is suspended by means of two light inextensible strings as shown in figure. Tension in one string immediately after the other string is cut is

a)

b)

c)

d)

 

1 Answer
127 votes
Answer Key / Explanation : (d) -

(d)

When one string is cut off, the rod will rotate about the other point . Let  be the linear acceleration of centre of mass of the rod and  be the linear acceleration of centre of mass of the rod and  be the angular acceleration of the rod about . As is clear from figure,

     …(i)

      …(ii)

From Eq. (i),

127 votes


127