Question

ASSIGNMENT 1 CHAPTER : MOTION An object is moving in a circle of radius r. Calculate the distance and displacement a) When it completes half the circle. b) When it completes one full circle. 1) A body thrown vertically upwards reaches a maximum height h. It then returns to ground. Calculate the distance travelled and the displacement. 2)A body travels a distance of 15 m from A to B and then moves a distance of 20 m at right angles to AB. Calculate the total distance travelled and the displacement. 3)A Particle is moving in a circle of diameter 5 m. Calculate the distance covered and the displacement when it complete 3 revolutions. 4)In a long distance race, the athletes were expected to take four rounds of the track such that the line of finish was same as the line of start. Suppose the length of the track was 200 m a) What is the total distance to be covered by the athletes? b) What is the displacement of the athletes when they touch the finish line? c) Is the motion of the athletes uniform or non-uniform ? d) Is the displacement of an athlete and the distance moved by him at the end of the race equal?

Answer 1

athletes uniform or non-uniform ? d) Is the displacement of an athlete and the distance moved by him at the end of the race equal?