Which of the following describes an object with zero net force acting on it? Choose all that apply. A car sped along at a constant rate while making a left turn. A truck sped up while proceeding along a straight path. A plane slowed down while making a u-turn. A boat accelerated at a constant rate while making a right turn. A rocket moved at a constant speed while moving in a straight line. I know that zero net force means that it has no acceleration, Sped up means accelerating. I picked the 1st and last one it was wrong.