What must be the angular speed of the rotating ball (middle picture in the simulation) such that the velocity of the point on the ball in contact with the surface (third picture in the simulation) is equal to zero at any given instant

when it gains or loses electrons

and 1and 1

causes

fossil fuels burn

cities become more industrialized

human population grows worldwide

initial speed when it is dropped is 150 ft/s

now at the same moment the acceleration due to gravity is perpendicular to its velocity

so as we know that

now we have centripetal acceleration a = 32 ft/s^2 as its perpendicular to velocity

while tangential acceleration at the same moment will be zero

so

now radius of curvature is given as

so the radius of curvature just after it is dropped is 703.125 ft