Question: A light inextensible string that goes over a smooth fixed pulley as shown in the figure connects two blocks of masses 0.36kg and 0.72kg.Taking g=10ms−2 ,find the work done (in joule)by string on the block of mass 0.36kg during the first second after the system is released from rest .
(A) 8 J
(B) 9 J
(C) 7 J
(D) 0.48 J
Answer: Option (A)
Solution:
