55° M, M1 8. In the figure above, block M2 is sitting on a table and is connected by mass-less chords to block M, and to a vertical wall. The coefficient of static friction between the block M2 and the table is ls = 0.60. Block M1 has a mass of 8 kg. The angle made by the chord with respect to the vertical wall is 55°. What minimum mass must block M2 have in order that to remain stationary and not slide? %3D

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Newton’s Third Law of Motion

The horse pulls the cart and the cart pulls the horse in response as per Newton third law. So the big question is, “Don’t the two forces cancel each other? How does the cart accelerate?”