Exhibit 4-1 While Her Kid Brother Is on a Wooden Horse at Horse

Multiple Choice

Exhibit 4-1
While her kid brother is on a wooden horse at the edge of a merry-go-round, Sheila rides her bicycle parallel to its edge. The wooden horses have a tangential speed of 6 m/s. Sheila rides at 4 m/s. The radius of the merry-go-round is 8 m.
Use this exhibit to answer the following question(s) .
-Refer to Exhibit 4-1. At what time intervals does Sheila encounter her brother, if she rides opposite to the direction of rotation of the merry-go-round?

A) 5.03 s
B) 8.37 s
C) 12.6 s
D) 25.1 s
E) 50.2 s