A metal ball weighing 0.35 lb is dropped from rest in a fluid. The magnitude of the resist...

A metal ball weighing 0.35 lb is dropped from rest in a fluid. The magnitude of the resistance due to the fluid is given by Cdv, where Cd is a drag coefficient and υ is the ball’s speed. It is observed that 2 s after release the speed of the ball is 25 ft/s. Determine the value of Cd.

Figure P3.13