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JBD PUBLICATION-LAWS OF MOTION-EXAMPLE
- Polishing beyond certain limit may increase friction between the surfa...
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- When brakes are applied in a car,the brake-shoes apply frictional forc...
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- Why is it difficult to walk on sand?
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- Automobile tyres have generally irregular projections over their surfa...
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- Sand is thrown on trakcs covered with snow to
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- How can we save petrol by properly inflating the tyres of vehicles ?Ex...
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- Why are tyres made circular?
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- Is a large brake on a bicycle wheel more effective than small one ? Ex...
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- Arrange coefficient of limitin friction (mu1) ,coefficient of kinetic ...
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- It is difficult to start motion than to maintain it .Explain.
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- If angle of friction is 30^@,calculate the coefficient of friction.
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- A force of 50 kg is requird to pull a roller weighing 500 kg over ice....
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- A force of 3 kg weight is just sufficient to pull a block of 4 kg over...
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- A cubical block rests on an inclined plane with four edges horizontal....
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- An automobile is moving on a horizontal road with a speed of v.If teh...
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- A suitcase us gently dropped on a coneyor belt moving at 3 m//.If th ...
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- A motor car running at the rate of 7 m s^-1 can be stopped by its brak...
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- A 4 kg block A is placed onn 8 kg block B which rests on a smooth tabl...
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- A body weighing 20 kg just slides down a rough inclined plane that ris...
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- Why are mountain roads generally made winding upwards rather than goin...
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