InterviewSolution
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InterviewSolution
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. This is because, in cothe train has a much lesserngage its state of motion. Accstr feorcordintrain has more inertia thansOly, heavier or more massive oeatleingr inertia. Quantitatively, thmovint is measured by its mass. We pl , se inertia and mass as losaymaia is the natural tendency ofmass. Wet a change in its state of ioThe mass of an object isadertia.nass and veuestionsWhich of the following hasinertia: (a) a rubber ball ande ss andstone of the same size? (b)。lded mombicycle and, a train? (c) a fte the momerupees coin and a one-rupe con e mrodu1.more imp2. In the following example, ty hat is.identify the number of times thevelocity of the ball changesA football player kicks a fool Mometo another player of his teamuho nagnitudkicks the football towards the f velocitgoal. The goalkeeper of the dngamopposite team collects the footbi beappliand kicks it towards a playero changehis own team |
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Answer» 2)The velocity of the ball changes four times.As a football player kicks the football, its speed changes from zero to a certain value.As a result, the velocity of the ball gets changed. In this case, the player applied aforce to change the velocity of the ball. Another player kicks the ball towards thegoal post. As a result, the direction of the ball gets changed. Therefore, its velocityalso changes. In this case, the player applied a force to change the velocity of theball. The goalkeeper collects the ball. In other words, the ball comes to rest. Thus, itsspeed reduces to zero from a certain value. The velocity of the ball has changed. Inthis case, the goalkeeper applied an opposite force to stop/change the velocity of theball. The goalkeeper kicks the ball towards his team players. Hence, the speed of theball increases from zero to a certain value. Hence, its velocity changes once again. Inthis case, the goalkeeper applied a force to change the velocity of the ball. |
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