A rod of length 1m and mass 0.5 kg hinged at one end, is initially hanging vertical. The other end is now raised slowly until it makes an angle 60º with the vertical. The required work is :(use g = 10 m/s 2 )
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
B
W a + W c = Δ K = 0, W a – mg 
= 0
W a = 
= (0.5) (10) 
= 
J.
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