Question

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exact llicaSur CHICHTE 13
4. Drop a paper, a piece of thermopol, and a piece of plastic from a height of 10-
15 feet. Note the time for each object to hit the ground. Why does the paper take
more time than thermopol and thermopol more than the plastic piece? Make the
paper to fell down in such a way that it should hit the ground before all of them. How
did it happen? Explain.
(5 marks)​

Answer 1

when the is x−y

⟾ Dist=100km

⟾ =5 hours

⟾ Dist =S×T

⟾ 100=(x−y)5

⟾ x−y=20⟶(I)

when THE is x+y

⟾ Dist=100km

⟾ t=1 hours

⟾ Dist=ST

⟾ 100=(x+y)1

⟾ x+y=100⟶(II)

⟾ x−y=20

⟾ x+y=100

​⟾ 2x=120

⟾ x=60km/h