When work is done on a body its energy

is up and when work is done by a body it's energy is down

Explanation:

I got it from another question

are there answer choices to this question? this seems like a question where you have options to choose from.

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