The masses of the blocks A and B are 0.5 kg and 1 kg respectively. The – McqOptions

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1.	The masses of the blocks A and B are 0.5 kg and 1 kg respectively. These are arranged as shown in the figure and are connected by a massless string. The coefficient of friction between all contact surfaces is 0.4. The force, necessary to move the block B with constant velocity, will be \[(g=10\,m/{{s}^{2}})\]
A.	5 N
B.	10 N
C.	15 N
D.	20 N
Answer» C. 15 N

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