Aball is thrown straight up, reaches a maximum height, then falls to its initial height. which of the following statements about the direction of the velocity and acceleration of the ball as it is going up is correct?
a) its velocity pounts downward and its acceleration points upward.
b) both velocity and its acceleration point upward
c) its velocity points upward and its acceleration points downward
d) both its velocity and its acceleration points downward

C) it's velocity points upward and it's acceleration points downward

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