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Explain the meaning of the following equ...

Explain the meaning of the following equation:
`p=mxxv`
where symbols have their usual meanings.

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LAKHMIR SINGH & MANJIT KAUR-FORCE AND LAWS OF MOTION-Exercise
  1. Fill in the following blanks with suitable words: (a) …... is a meas...

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  2. It is easier to stop a tennis ball than a cricket ball moving with the...

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  3. Explain the meaning of the following equation: p=mxxv where symbol...

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  4. Explain how, a karate player can break a pile of tiles with a single b...

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  5. Calculate the momentum of a toy car of mass 200 g moving with a speed ...

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  6. What is the change in momentum of a car weighing 1500 kg when its spee...

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  7. A body of mass 25 kg has a momentum of 125 kg.m/s. Calculate the veloc...

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  8. Calculate the momentum of the following: (a) an elephant of mass 200...

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  9. Which of the two, balanced forces or unbalanced forces, can change the...

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  10. Describe the term 'inertia' with respect to motion.

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  11. On what factor does the inertia of a body depend ? Which has more iner...

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  12. A person in a bus tends to fall backward, when it starts suddenly?

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  13. Why does a person in a bus tends to fall forward when it stops suddenl...

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  14. When a carpet is beaten with a stick, dust comes out of it, Explain.

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  15. When a branch of a tree is shaken, some of the fruits may fall down. W...

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  16. Explain why, it is dangerous to jump out of a moving bus.

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  17. What is the momentum in kg.m/s of a 10 kg car travelling at (a) 5 m/s ...

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  18. (a) Define momentum of a body. On what factors does the momentum of a ...

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  19. (a) Define the term 'force'. (b) State the various effects of force.

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  20. Give one example each where: (a) a force moves a stationary body. ...

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