When two forces acting on an object are equal?

Newton's first law states that an object at rest stays at rest and an object in motion

stays in motion with constant velocity unless acted upon by an unbalanced force. This

is also called the law of inertia. So, the forces acting on an object are balanced when

the object is not accelerating. This happens when the object is at rest, or when the

object is moving at constant velocity.

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The forces on an object are balanced when their vector sum is zero.