Which of the following statements with reference to uniform linear motion and uniform circular motion is / are TRUE? 1. In a uniform linear motion, a body moves in the same direction with a constant speed but in uniform circular motion, the speed of the body remains constant and the direction of the motion changes continuously. 2. In a uniform linear motion, there is instantaneous change in velocity but in uniform circular motion, the velocity remains the same. 3. A uniform linear motion is an accelerated motion but a uniform circular motion is not an accelerated motion.