A uniform beam of weight W is support horizontally by means of supports A and B at its ends. Find the reaction at A immediately after B is withdrawn.
Text Solution
Verified by ExpertsThe correct answer is:
A
When the support ‘B’ is withdrawn, the beam starts turning about A. Angular acceleration of beam about A, when B is withdrawn
α α = 
= 
Now, W − − R = 
a t
W − − R = 
× × 
W − − R = 
⇒ ⇒ R = W/4
Hence, is correct.
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