More people end up in u. s. emergency rooms because of fall-related injuries than from any other cause. at what speed v would someone hit the ground who accidentally steps off the top rung of a 9.00 ft tall stepladder? (that step is usually embossed with the phrase "warning! do not stand on this step.") ignore the effects of air resistance. let the +y direction point vertically upward and the origin be on the ground.

the answer is f1 and d2 because if you put equal force on those two points the beam would balance trust me on this

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