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olasank [31]
3 years ago
9

The formula for the area of a circle is A = 1tr2 (use n =3.14)

Mathematics
1 answer:
makkiz [27]3 years ago
3 0
It would be 3.14(7)^2
Then 3.14*49
Multiply those two to get your area
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Three forces of 300 N in the direction of N30E, 400N in the direction of N60E and
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Split up each force into horizontal and vertical components.

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(400 N) (cos(60°) i + sin(60°) j)

• 500 N at N80°E :

(500 N) (cos(80°) i + sin(80°) j)

The resultant force is the sum of these forces,

∑ F = (300 cos(30°) + 400 cos(60°) + 500 cos(80°)) i

… … …  + (300 sin(30°) + 400 sin(60°) + 500 sin(80°)) j N

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3 years ago
According to the graph, the first coordinate of which point is a negative number
kolbaska11 [484]

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