Pulling Out of a Dive,the Pilot of an Airplane Guides

Multiple Choice

Pulling out of a dive,the pilot of an airplane guides his plane into a vertical circle with a radius of 600 m.At the bottom of the dive,the speed of the airplane is 150 m/s.What is the apparent weight (the force that the pilot exerts on the seat) of the 70-kg pilot at that point?

A) 3300 N
B) 690 N
C) 2600 N
D) 490 N
E) 1400 N