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CBSE 9th Science | Motion – NCERT Solved Questions
Motion – NCERT Solved Questions Question 1. An object has moved through a distance. Can it have zero displacement ? If yes, support your answer with an example. Answer. Yes, it can have zero displacement. Explanation : If we take a round trip and reach back at the starting point, then we have traveled some…
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CBSE 9th Physics | Motion – Solved Problems
Motion – Solved Problems Problem 1. A car covers the 1st half of the distance between two places at a speed of 40 km/hr and the 2nd half at 60 km/hr what is the average speed of the car ? Solution. Suppose the total distance covered is S. Then time taken to cover first’s distance…