An increase in the magnitude of which others quantities causes a reduction in centripetal force? A. Mass
B.Radius of curvature
C. Velocity

F = M v^2 / R = M w^2 R      where w represents the angular frequency

Only 1 / R causes a reduction in centripetal force when increased

(B)   is the answer

Mass and distance are the answers.

Explanation:

Gravity refers to the force that attracts a body to the center of the earth or toward any other physical body with mass. It is a natural phenomenon and it affects from the smallest particle to stars and galaxies. The factors that determine how much gravity a body has are mass and distance.