Recall that Coulomb's constant is ke-8.99-10°Nm²/C2. Two identical charged objects are placed 1.00m apart from each other and an electrostatic force of Fe = 3.00N is measured between them. What is the charge, 9, on each object?
Your

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

god i hope this !