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In the figure shown, C is a fixed wedge on horizontal surface. Blocks A and B are of
masses m and 2m respectively are kept as shown in figure. They can slide along the
incline plane smoothly. The pulley and string are massless. The inclined planes are
very long. A and B are released from rest. 2 seconds after the release, B is caught for a
moment and released again. Then (Take theta= 30 and g =10m/ s2 ) : Choose the correct
option(s).

A) the speed of ‘A’ just before the instant when the string becomes tight again will be
10/3 m/s
B) the speed of ‘A’ just before the instant when the string becomes tight again will be
zero.
C) the speed of ‘A’ just after the instant when the string becomes tight again will be
20/9 m/s
D) the speed of ‘A’ just after the instant when the string becomes tight again will be
10/3 m/s

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