PhysicsKund Physics class 9 to 12 NCERT, JEE - NEET

NCERT CLASS 9 SCIENCE CHAPTER 7 MOTION COMPLETE SOLUTION - Phyaicskund Class 9 Science Chapter 7 motion Page number 74 Question 1 to 3 Solution with video Explanation : Question 1. An object has moved through a distance. Can it have zero displacement? If yes, support your answer with an example. Solution : Yes, An object instead of moving through a distance can have zero displacement. Example: If an object travels from point A and reaches to the same point A, then its displacement is zero. Total Distance = 4 + 4 = 8 m Distance = Final Position - Initial Position                 = 0-0 = 0 m Question 2. A farmer moves along the boundary of a square field of side 10 m in 40 s. What will be the magnitude of displacement of the farmer at the end of 2 minutes 20 seconds from his initial position? Solution : Given Side of square field = 10m So, Perimeter of a square = 4 × side = 4×10 m = 40 m Farmer takes 4...

NCERT Solutions for class 9 Science chapter 8 Forces and Laws of Motion is prepared and uploaded for reference by academic team of expert members. Get solutions of all chapters of NCERT class 9 Science. use as a reference of the following NCERT solutions of chapter 8 prepared. Read the theory of chapter-8 Forces and Laws of Motion while before going to exam. Page no :  91 Question 1 to 4 :  Question 1. Which of the following has more inertia : (a) a rubber ball and a stone of the same size? (b) a bicycle and a train? (c) a five rupees coin and a one-rupee coin? Solution : (a) a stone of the same size will have more inertia than a rubber ball. (b) A train will have more inertia than a bicycle. (c) A five rupees coin will have more inertia than a one-rupee coin. Question 2. In the following example, try to identify the number of times the velocity of the ball changes: “A football player kicks a football to another player of his team who kicks the football towards the goal. The ...