Statement 1 is true: In uniform linear motion, velocity (speed and direction) is constant. In uniform circular motion, speed is constant but the direction of velocity continuously changes as the body moves along the circle. Statement 2 is false: In uniform linear motion, velocity is constant, so there is no instantaneous change in velocity unless acted upon by a force. In uniform circular motion, velocity changes continuously (direction changes), it does not remain the same. Statement 3 is false: Uniform linear motion is not accelerated; its acceleration is zero as velocity is constant. Uniform circular motion is accelerated (centripetal acceleration) because the direction of velocity is changing, even if the speed is constant.
Which of the following statements with reference to uniform linear motion and uniform circular motion is/are TRUE? In a uniform linear motion, a body moves in the same direction with a constant speed but in uniform circular motion, the direction of the motion changes continuously. In a uniform linear motion, there is instantaneous change in velocity but in uniform circular motion, the velocity remains the same. A uniform linear motion is an accelerated motion but a uniform circular motion is not an accelerated motion. Choose the correct answer from the options given below:
Asked in HAS Prelims 2022 · Topic: Mechanics (Newton's Laws of Motion and their applications)
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