Does anyone know the answer to this question??
Barometers have long been used to predict the weather. Jay and Jeff were responsible for recording the class weather data each day in March. This particular morning, they tapped the barometer and noticed that the indicator needle did not move. What clue did the barometer give the boys about the up-coming weather?

d.7.5cm is your answer

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