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Why does a gun recoil on firing? Obtain ...

Why does a gun recoil on firing? Obtain an expression for recoil velocity of gun.

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SL ARORA-Laws of Motion-Exercise
  1. State Newton's Second law of motion. Derive a mathematical formula to ...

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  2. State Newton's third law of motion. Derive the law of conservation of ...

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  3. Why does a gun recoil on firing? Obtain an expression for recoil veloc...

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  4. Name a varying mass system Drive the expressions the (i) for the veloc...

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  5. Two masses M and m are connected at the two ends of an inextensible st...

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  6. Is impulse a scalar or vector quantity ? Write its SI unit.

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  7. State and establish impulse-momentum theorem.

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  8. Explain the term impulse Show that impulse of a variable force is equa...

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  9. What is friction ?

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  10. Define coefficient of friction and angle of friction and hence derive ...

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  11. Define angle of friction and angle of repose. Show that both are numer...

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  12. It is easier to pull a lawn roller than to push it because pulling .

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  13. Describe any two methods of reducing friction.

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  14. Define force of friction. How does the use of ball bearing reduce fric...

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  15. What do you mean by ball bearings ? How sliding friction is converted ...

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  16. Calculate the amount of work done in moving a body up a rough inclined...

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  17. Derive an expression for the work done when a body slides down a rough...

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  18. Obtain an expression for the acceleration of a body sliding down a rou...

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  19. Define the term coefficient of limiting friction between the surfaces....

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  20. When a horse pulls a cart, by Newton's III law the cart also pulls the...

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