A thin rod is initially positioned in the vertical direction, withits lower end attached to a frictionless axis that is mounted onthe floor. The rod has a length of 2.00 m and is allowed to fall,starting from rest. Find the tangential speed of the free end o fthe rod, just before the rod hits the floor after rotating through90 degrees.
a. 3.59 m/s
b. 4.26 m/s
c. 5.89 m/s
d. 7.67 m/s
e. 6.83 m/s