[问答题]
If the acceleration of an object is zero,:vn doa(w48elkh 9 3gj are no forc- slxrx2 yl93zes acting on it? Explain.
参考答案: If the acceleration of an object is zero, then by Newton’s second law, the net force must be zero. There can be forces acting on the object as long as the vector sum of the forces is zero.
