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Take a feather and a paper. Allow them t...

Take a feather and a paper. Allow them to fall to the ground simultaneously. Which will reach the ground earlier? Why?

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There is no unique answer, It depends on the feather and paper. Upthrust due to air and force due to friction with air play very important roles here. The acceleration of a body depends on the resultant of the earth's gravitational force on the body and the upthrust and the force of friction due to air.
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NAVNEET PUBLICATION - MAHARASHTRA BOARD-GRAVITATION -Answer the following questions :
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  2. Take two similar pages from your notebook. Crumple one paper and allow...

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  3. Take a feather and a paper. Allow them to fall to the ground simultane...

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  4. What is the acceleration Due to Gravity?

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  5. What is meant by 'free fall' hence define acceleration due to gravity.

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  6. From to newton's law of gravitation, derive the formula for the accele...

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  7. Explain the factors affecting the value of g .

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  8. If g=GM//r^(2), then where will the value of g be high, at Goa Beach o...

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  9. Explain why the value of g is zero at the centre of the earth .

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

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

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

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

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

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

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

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

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  18. What is free fall ?

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  19. Define free fall .

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

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