The center of this circle is at (0, 0) because there are no identifiers in front of the x and y values. After you graph the circle, you will see that (3, -1) is on the circle.
Answer with explanation:
For any object having the velocity vector as
the magnitude of velocity is given by
For car 1 the velocity vector is
Therefore
Similarly for car 2 we have
Therefore
Comparing both the values we find that car 1 has the greater speed.
Yes diameter = 4 height = 9 would be the same as the one above it.
The last one would be:
V= 3.14 x 3^2 x 4 = 36 x3.14 = 113.04
As= 2x 3.14x3x4 + 2x3.14x3^2 = 75.36 + 56.52= 131.88
Ratio: 131.88: 113.04