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AP Physics 1
2.3 Newton’s Third Law
BeginnerMCQConceptual24.4k
A side-view diagram showing a horse on the left and a cart on the right on a horizontal ground. A horizontal rope connects the two. An arrow labeled 'a' points to the right to indicate the direction of acceleration for the entire system. Labels F_HC and F_CH are not shown to avoid revealing the answer, but the physical setup is clearly depicted.
A horse pulling a cart as they accelerate forward together.
A horse is hitched to a cart on a flat, horizontal road. The horse exerts a forward force of magnitude \(F_{HC}\) on the cart, and the cart exerts a backward force of magnitude \(F_{CH}\) on the horse. The horse and cart accelerate together in the forward direction. Which of the following correctly compares the magnitudes of the two forces?

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