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Two blocks A and B of equal mass m are connected through a massless string and arrangement as shown in the figure. The wedge is fixed on horizontal surface. Friction is absent everywhere. When the system is released from rest.
Select one or more:
  • a)
    acceleration of A is 3g/4
  • b)
    acceleration of A is g/2
  • c)
    tension in string is mg/4
  • d)
    tension in string is mg/2
Correct answer is option 'A,C'. Can you explain this answer?
Verified Answer
Two blocksAandBof equal massmare connected through a massless string a...

Let a be acceleration of system and T be tension in, the string.
F.B.D. of block A

F.B.D. of block B

Adding equation (1) and (2) we get


from equation (1) ;
T = mg/4
The correct answers are: tension in string is mg/4, acceleration of A is 3g/4
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Two blocksAandBof equal massmare connected through a massless string a...
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Two blocksAandBof equal massmare connected through a massless string a...

Let a be acceleration of system and T be tension in, the string.
F.B.D. of block A

F.B.D. of block B

Adding equation (1) and (2) we get


from equation (1) ;
T = mg/4
The correct answers are: tension in string is mg/4, acceleration of A is 3g/4
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Two blocksAandBof equal massmare connected through a massless string and arrangement as shown in the figure. The wedge is fixed on horizontal surface. Friction is absent everywhere. When the system is released from rest.Select one or more:a)acceleration ofAis3g/4b)acceleration ofAisg/2c)tension in string ismg/4d)tension in string ismg/2Correct answer is option 'A,C'. Can you explain this answer?
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