A horizontal 726 N merry-go-round of radius 1.37 m is started from rest by a constant horizontal force of 55.6 N applied tangentially to the merry-go-round. Find the kinetic energy of the merry-go-round after 2.36 s. The acceleration of gravity is 9.8 m/s². Assume the merry-go-round is a solid cylinder.
a. 2378 J
b. 2786 J
c. 2134 J
d. 1950 J