1. Identify the set of balanced forces from the following (2 marks) a. 100 N,...

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1. Identify the set of balanced forces from the following (2 marks) a. 100 N, -150 N, 200 N b. 70 N, -160 N, 90 N G. 25 N.48 N, 36 N d. -80 N, -30 N, 100 N 2. There are four objects of mass 50 kg, 25 kg, 80 kg and 9 kg. The object which shows maximum Inertia is (2 marks) a. 50 kg b. 25 kg c. 80kg d. 9 kg 3. Write whether true or false (5 marki An object moving with a constant velocity is having zero acceleration SECTION B: Short Answers 4. The passengers in a car are advised to wear seat belt. What is the advantage of seat belt? Explain the law used to answer this question. (2 marks) 5. a. Explain the difference between distance and displacement. b. Distance greater than or equal to displacement Displacement greater than distance. Which situation is possible ? Scientifically explain. (3 marks) 6. Explain the concept of Law of conservation of energy with an example. (2 marks) SECTION C: Problem Solving 7. An object of mass 10 kg moving with a velocity 250 m/s changes to 500 m/s in 15sec. Apply the appropriate equation from the following to calculate the acceleration of the body. Also calculate the force exerted on the object. Give appropriate units for the quantities wherever necessary (4 marks) WEEKDAYS GEN2004 Page 1 of 2

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