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September 18, 2019

Question Set with Numerical Problems

Solution to problems – class 9 – Set 1 Q 60

Problem Statement 60) A metallic sphere of mass 2 kg and volume 2.5 x 10-4 m3 is completely immersed in water. Find the buoyant force exerted by water on the sphere. Density of water = 1000 kg/m3 Solution Volume of the water displaced = volume of the completely immersed sphere=2.5 x 10-4 m3 Mass of

Solution to problems – class 9 – Set 1 Q 58

Problem Statement 58) A heavy car A of mass 2000 kg travelling at 10 m/s has a head-on collision with a sports car B of mass 500 kg. If both cars stop dead on colliding, what was the velocity of car B ? Solution Say, velocity of B before collision be V m/s Initial momentum

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