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Why does an object released from the han...

Why does an object released from the hand , fall on the earth ?

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When an object is held in the hand , the gravitational force acting on the object due to the earth is balanced by the person holding the object . When the object is released from the hand , it falls on the earth due to the earth ' s gravitational force .
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NAVNEET PUBLICATION - MAHARASHTRA BOARD-GRAVITATION -Answer the following questions :
  1. Explain why the value of g is zero at the centre of the earth .

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  2. Does the value of g change while going deep inside the earth ? Why ?

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  3. Why does an object released from the hand , fall on the earth ?

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  4. Does the value of g depend on the mass of the falling body ? Why ?

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  5. Define mass . State its SI and CGS units.

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  6. Define weight . State its SI and CGs units .

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  7. As per the request of one of his friends from the equator , Rahul buys...

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  8. If the value of g suddenly becomes twice its value , it will become tw...

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  9. What is the difference between mass and weight of an object ? Will the...

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  10. What is free fall ?

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  11. Define free fall .

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  12. Explain the term free fall and state the corresponding kinematical equ...

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  13. During a free fall , will a heavier object accelerate more than a ligh...

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  14. If you had to calculate the mass of the earth , how would you do it ?

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  15. What is gravitational potential energy?

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  16. Define gravitational potential energy. Write the formula for it.

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  17. What is escape velocity? Obtain an expression for it.

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  18. Define escape velocity.

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  19. Explain the term escape velocity.

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  20. Write a short note on escape velocity.

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