force F2=15.1N acting at an angle of 0 to the horizontal are applied to a block of mass m=2.6kg. The coefficient of kinetic friction between the block and the surface is uk=0.2. The block is moving to the right. Solve numerically for the magnitude of the normal force, FN in newtons that acts on the block if 0=30 degrees. Solve numerically for the magnitude of acceleration of the block a in m/s2 if 0=30 degrees.

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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?”