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FORCES AND LAWS OF MOTION
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PRADEEP-FORCES AND LAWS OF MOTION-SHORT ANSWER QUESTIONS
- Why is it difficult to walk on a slippery road?
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- Why does a gunman get a jerk on a firing a bullet?
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- State the law of conservation of liner momentum.
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- Name any two applications of the law of conservation of liner momentum...
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- It is easier to push an empty box than to push the box full of books.W...
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- When a car rounds a curve suddenly, the person inside is pushed outwar...
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- A bullet thrown with a hand can be stopped eaisly, but it may kill a p...
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- Show that kg-ms^(-1) and N-s represent the same quantity. Which is tha...
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- No force is required to move a body uniformly along a straight line. C...
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- A feather of mass 5g is dropped from a height. It is observed to fall ...
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- What is force ? What is inertia ? How is inertia measured ?
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- Explain what is meant by momentum of a body. Is it a scalar or a vecto...
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- Derive the relation F=ma, where the symbols have their usual meanings.
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- Discuss briefly Gelileo's ideas about motion.
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- State Newton's third law of motion and principle of conservation of mo...
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- Eastablish relation between inertia and mass.
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- Explain the use of seat belts of cars.
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- Explain why a player lowers his hands while catching a cricket ball.
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- Why does a gun recoil on firing? Obtain an expression for recoil veloc...
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- A car weigh 1500 kg. Its speed time graph is shown in (figure). Calcul...
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