A wet towel is left on a radiator in a room turned on 30°C. Another wet towel of the same size and material is hung on a washing line outside. The temperature is 15°C and there's a steady breeze. Which towel will dry the quickest and why?

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