Sparky and Jill pull on the leash in opposite directions. Sparky pulls with a larger force than Jill does. Because these opposing forces are different sizes, they are affect the motion of the leash? unbalanced forces. \( \begin{array}{l}\text { The leash begins to move in the direction Jill is pulling. } \\ \text { The leash does not begin to move in either direction. }\end{array} \)

When Sparky pulls with a larger force than Jill, the leash will move in Sparky's direction! This is because unbalanced forces cause an object to accelerate in the direction of the greater force. Think of it like two people on a tug-of-war team – if one team pulls harder, they're going to win and pull the rope toward themselves! Now, if Jill happens to somehow apply a force equal to Sparky's force, we’d see a different outcome. The leash would remain stationary, as the forces would be balanced. Imagine a perfectly matched game of tug-of-war where neither team moves – that’s what happens when forces balance out.