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Q.

Two masses m1 and m2 are connected to the ends of a massless string that passes over a pulley fixed at the top of a double incline as shown. Assuming m1 > m2, acceleration of the system is:

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a

m1gsinθ1+m2gsinθ2m1+m2

b

m1gsinθ1-m2gsinθ2m1-m2

c

m1gsinθ1-m2gsinθ2m1+m2

d

m1+m2sinθ1+sinθ2gm1-m2

answer is C.

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Detailed Solution

Acceleration = Net pulling force  Total mass 
=m1gsinθ1-m2gsinθ2m1+m2

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