Two motors in a factory are running at slightly different rates. one runs at 825 rpm and the other at 786 rpm. you hear the sound intensity increase and then decrease periodically due to wave interference. how much time elapses between successive maxima of the sound intensity

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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