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Two blocks A and B of equal mass m are connected through a massless string and arranged as shown ,friction is absent everywhere .When the system is released from rest then find tension in string and acceleration of A.

Two blocks A and B of equal mass m are connected through a massless string and arranged as shown ,friction is absent everywhere .When the system is released from rest then find tension in string and acceleration of A.

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Grade:11

1 Answers

Manan B Patel
13 Points
4 years ago
For block A,
ma = mgsin30 + T
T=m(a-g/2)  -----------1
 
Now, For block B,
ma = mg - T
ma = mg - ma + mg/2
2ma = 3mg/2
a = 3g/4
 
Now, putting value of a in eq. 1
T = m(3g/4-g/2)
T = mg/4

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