# physics

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two blocks are connected by a string. the smooth incline surface makes an angle of 42 degrees with the horizontal, andthe block on the incline has a mass of 6.7 kg. find the mass of the hanging block that will cause the system to be in equilibrium. (the pully is assumed to be ideal.)

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Let mass of hanging block be M
Since in equilibrium the hanging mass MG = Tension in the wire

Similarly along the incline Tension in the wire = 6.7 * g * sin 42 (Component of force along the incline)

So equation both the equations:

M*g = 6.7 * g * sin(42)
M = 6.7*sin(42)

So M = 6.7*sin(42)

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Two blocks are connected by a string, as shown in the figure. The system is in equilibrium. The inclined

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6.14

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