Two blocks, with masses m1 = 2.4 kg and m2 = 1.8 kg, are initially at rest and are connected by a massless string passing over a massless, frictionless pulley. The system is released from rest. Draw free body diagrams that show all the forces acting on m1 and m2. Calculate the acceleration of the blocks. Calculate the tension in the string between the blocks.

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