Purchase Solution

Momentum of Freight car containing a mass of sand

Not what you're looking for?

Ask Custom Question

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

Purchase this Solution

Solution Summary

The solution includes all the formulas with explanations in solving the problem.

Solution Preview

We can start w/ Newton's law F=ma

But in this case "m" is the mass of the car and the sand

We should write this as...

The mass of the sand lost is ...

Purchase this Solution

Free BrainMass Quizzes
Intro to the Physics Waves

Some short-answer questions involving the basic vocabulary of string, sound, and water waves.

Basic Physics

This quiz will test your knowledge about basic Physics.

Introduction to Nanotechnology/Nanomaterials

This quiz is for any area of science. Test yourself to see what knowledge of nanotechnology you have. This content will also make you familiar with basic concepts of nanotechnology.

Variables in Science Experiments

How well do you understand variables? Test your knowledge of independent (manipulated), dependent (responding), and controlled variables with this 10 question quiz.

Classical Mechanics

This quiz is designed to test and improve your knowledge on Classical Mechanics.