An object moves in a circular path at a constant speed. Which of the following is true? A. The car’s acceleration is zero because it has a constant speed B. The car’s acceleration is not zero and causes the car to slow down C. The car’s acceleration is not zero and causes the car to speed up D. The car’s acceleration is not zero and causes the change in the direction of the car’s velocity E. None from the above

For an object moving in uniform circular motion, which of the following must be true? The object must travel with a constant velocity and a constant speed. The object must be travelling at a constant velocity. The object must be travelling at a constant speed. The object must travel with a constant acceleration.

n which of the following cases, the object does not possess an acceleration or retardation?Awhen it moves in upward direction with decreasing speedBwhen it moves in downward direction with increasing speedCwhen it moves with constant speed along circular pathDwhen it moves with constant speed along horizontal direction

Which of the following situations is true and possible?a. If the velocity of a body is zero, then the acceleration can be non-zerob. A body moving at a constant velocity can have accelerationc. The magnitude of distance and displacement are equal in a circular motiond. All of the above

An athlete is running along a circular track with a constant speed of 3 m/s. Which of the following statements in correct?Group of answer choicesacceleration of the athlete is non-zerothe correct answer is not in this listacceleration of the athlete must be zero because the speed is constantnet force on the athlete is zero because no one is pushing himthe track must be frictionless for the athlete to run with a constant speed

Which of the following statements is false?a.For every force, there is an equal and opposite reaction force.b.An externally applied force is needed to change the direction of a moving object.c.Centripetal acceleration acts towards the centre of the circle of motion.d.A body travelling at a constant velocity in a circle has no acceleration.