CBSE Class 9 NCERT Science Chapter 8. Motion Chapter Exercise Page No. 112 Page No. 113 PART 1

Описание: Topics covered in this period:
1) Exercise Page No. 112
2) Exercise Page No. 113
3) An athlete completes one round of a circular track of diameter 200 m in 40 s. What will be the distance covered and the displacement at the end of 2 minutes 20 s?
4) Joseph jogs from one end A to the other end B of a straight 300 m road in 2 minutes 30 seconds and then turns around and jogs 100 m back to point C in another 1 minute. What are Joseph’s average speeds and velocities in jogging (a) from A to B and (b) from A to C?
5) Abdul, while driving to school, computes the average speed for his trip to be 20 km h–1. On his return trip along the same route, there is less traffic and the average speed is 30 km h–1. What is the average speed for Abdul’s trip?

CBSE Class 9 NCERT Science Chapter 8. Motion Chapter Exercise Page No. 112 Page No. 113 Part 1