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crimeas [40]
3 years ago
14

A student has two identical sheets of paper. he crumples one up into a small ball. if he drops the sheet of paper and the ball o

f paper off a building at the same time, which will reach the ground first and why?
Mathematics
2 answers:
Anna [14]3 years ago
8 0
The small ball will because air resistance has less effect on it than it does on the piece of paper.  Physics 101 here.  I love Physics!
Vilka [71]3 years ago
5 0
The air resistance acting on the un-crumbled sheet is greater.
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HELP PLS ITS URGENT
marysya [2.9K]

Melanie: 15 years old

Kevin: 5 years old

Assume Kevin's present age is x.

That means that 3 years ago, his age would be x - 3.

Melanie's age would be 6(x - 3).

Same thing for 5 years into the future:

Kevin's age would be x + 5.

Melanie's age would be 2(x + 5).

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\left \{ {{x + 5 = 2(x + 5)} \atop {x - 3 = 6(x - 3)}} \right.

By subtracting both equations, we are simplified to:

8 = -4x + 28

By solving the equation, we get x = 5.

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