A block of mass m = 23kg is being pulled with forces F1 = 61N and F2 = 127N that are in opposite directions as shown in the figure below. If the block does not move in the presence of these forces, what is the magnitude of the static force of friction acting on the block? Express your answer in units of N using zero decimal places. You can take g = 9.80m/s² if necessary. Ę F _TI m

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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?”