A horizontal 779 N merry-go-round of a radius 1.8 m is started from rest by a constant horizontal force of 61.8 N applied tangentially to the merry-go-round. Find the kinetic energy of the merry-go-round after 3.03 s.
a. 5514 J
b. 6147 J
c. 4821 J
d. 4500 J