Two people are moving a heavy desk. One person pulls to the right with a force of 25 Newtons, while the other pushes to the right with a force of 50 Newtons. There is also 20 Newtons of friction pointing to the left. What is the net force on the desk?

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