A carnival merry-go-round rotates about a vertical axis at a constant rate. A man standing on the edge has a constant speed of 3.36 m/s and a centripetal acceleration "a" of magnitude 1.86 m/s^2. Position vector "r" locates him relative to the rotation axis.
(a) What is the magnitude of r?
(b) What is the direction of r when a :
i) is directed (ii) due east and (iii) due south?

Explanation:

Given,    constant speed v = 3.36 m / s, centripetal acceleration a = 1.86 m/s^2.

                          |a| =  

                           |r| =   = (3.66)^2 / 1.86

                           |r| = 7.32 m.

The centripetal acceleration and radius vector are in opposite directions and the direction of centripetal acceleration is always inwards along radius vector.

colorectal cancer may also develop from areas of abnormal cells in the lining of the colon or rectum. this area of abnormal cells is called dysplasia and is more commonly seen in people with certain inflammatory diseases of the bowel such as crohn's disease or ulcerative colitis.

the components of a vector are the parts of the vectors that are to each other.

b perpendicular