Problem 1 Consider a toy made out of a ball attached to a 7 inch string attached to a pole. The pole is motorized so that the ball at the end of the string moves in a circle clockwise around the pole. The stand is located on origin of an x and y axis and the speed of the ball is constant (22 in/s).

1. Find magnitude and direction (which way is the arrow pointing) of v and a when ball is at (x=0, y=7)
2. Find magnitude and direction (which way is the arrow pointing) of v and a when ball is at (-7, 0)
3. Find magnitude and direction (which way is the arrow pointing) of v and a when ball is at (0, -7)

Draw the coordinate system and the circular motion centered at x=0 and y=0