Solution Found!

A mass m1 rests on a frictionless horizontal table.

Chapter 7, Problem 7.50

(choose chapter or problem)

Get Unlimited Answers
QUESTION:

A mass m1 rests on a frictionless horizontal table. Attached to it is a string which runs hori-zontally to the edge of the table, where it passes over a frictionless, small pulley and down to where it supports a mass m2. Use as coordinates x and y the distances of mi and m2 from the pulley. These satisfy the constraint equation f (x, y)=--x-Fy=- const. Write down the two modified Lagrange equa-tions and solve them (together with the constraint equation) for x, 53, and the Lagrange multiplier X. Use (7.122) (and the corresponding equation in y) to find the tension forces on the two masses. Verify your answers by solving the problem by the elementary Newtonian approach.

Questions & Answers

QUESTION:

A mass m1 rests on a frictionless horizontal table. Attached to it is a string which runs hori-zontally to the edge of the table, where it passes over a frictionless, small pulley and down to where it supports a mass m2. Use as coordinates x and y the distances of mi and m2 from the pulley. These satisfy the constraint equation f (x, y)=--x-Fy=- const. Write down the two modified Lagrange equa-tions and solve them (together with the constraint equation) for x, 53, and the Lagrange multiplier X. Use (7.122) (and the corresponding equation in y) to find the tension forces on the two masses. Verify your answers by solving the problem by the elementary Newtonian approach.

ANSWER:

Step 1 of 3

The following are given by the question:

The mass rest on the frictional table is .

The mass that is hanging with the of pulley is .

The constraint equation

                                               

The kinetic energy for 

                       

The potential energy for

                        

The Lagrange equation is given by

                       

Substitute the values and solve as

                       

 

Add to cart


Study Tools You Might Need

Not The Solution You Need? Search for Your Answer Here:

×

Login

Login or Sign up for access to all of our study tools and educational content!

Forgot password?
Register Now

×

Register

Sign up for access to all content on our site!

Or login if you already have an account

×

Reset password

If you have an active account we’ll send you an e-mail for password recovery

Or login if you have your password back