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yuradex [85]
3 years ago
15

- farmer has recently bought a 40 acre land and wishes to fence the perimeter. given that the Land is square, what lenght of fen

cing (in metres) should the farmer purchase? Take I acre as 4,046 m​
Physics
1 answer:
goldfiish [28.3K]3 years ago
3 0

Answer:

Explanation:

4√((40(4046)) = 1,609.17370... = 1609 m

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When the ball is at the bottom of the circle, the equation of the forces is the following:

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where

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T+mg=m\frac{v^2}{R}

And substituting the numerical values and re-arranging it, we find

T=m\frac{v^2}{R}-mg=(0.158 kg)\frac{5.22 m/s)^2}{1.1 m}-(0.158 kg)(9.8 m/s^2)=2.3 N

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and re-arranging the equation, we find

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