Given data:
* The mass of the object is 410 kg.
* The radius of the circle is 6.1 m.
* The speed of the object is 35 m/s.
Solution:
The centripetal force acting on the object is,

where m is the mass, v is the speed, and r is the radius,
Substituting the known values,

Thus, the centripetal force acting on the object is 82.3 kN.