A freight car of mass M contains a mass of sand m At t 0 a

Last updated: 6/9/2023

A freight car of mass M contains a mass of sand m At t 0 a constant horizontal force F is applied in the direction of rolling and at the same time a port in the bottom is opened to let the sand flow out at constant rate dm dt Find the speed of the freight car when all the sand is gone Assume the freight car is at rest at t 0