Somewhere on the Surface of the Earth a Yo-Yo with M

Multiple Choice

Somewhere on the surface of the Earth a yo-yo with m = 0.050 kg is swung in a vertical circle with radius r = 0.40 m.Find the tension on the string at the top if the speed at that point is v = 2.0 m/s.

A) 3.0 N
B) 27.0 N
C) 81.0 N
D) 0.333 N
E) 0.0095 N