Use your trigonometry skills to mathematically describe the vertical position of the gray dot on the driving wheel over time.
How can you use this to describe the vertical position of a small piece of the string?

to treat tumors in the body

if the person is shown to have +90n, then ans is -10n.

if the person is shown to have -90n, then ans is +10n.

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