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Use the distance formula to find the diameter:
d = sqrt((x2-x1)^2 + (y2-y1)^2)
Diameter = sqrt((-2 - -2)^2 + (-2 - 3)^2)
Diameter = sqrt((0)^2 + -5^2)
Diameter = sqrt(5^2)
Diameter = 5
The radius is half the diameter: 5/2 = 2.5 units
Answer:

Step-by-step explanation:
Given that,
A wheel with radius 1 foot makes 1 revolution in 4 seconds
We need to find the linera velocity of a point on the edge of the wheel. We know that, the linear velcity is given by :

Where
is angular velcocity,

So

So, the linear velocity of the wheel is equal to
.