Answer:

Step-by-step explanation:
Given that,
Speed of the plane, v = 30 m/s
Radius of the circular path, r = 100 m
The centripetal force acting on the plane, F = 635 N
To find,
The mass of the pilot and the plane.
Solution,
When an object moves in a circular path, the force acting on it is called centripetal force. Its formula is given by :




So, the mass of the pilot and the plane is 70.55 kg.