Velocity in the same direction of the friction force!

[ahmedelshfie]

This following applet is Velocity in the same direction of the friction force!
Created by prof Hwang Modified by Ahmed
Original project Velocity in the same direction of the friction force!

On block on top of another block connected to a spring on a friction surface!
A block with mass m2 on top of another block with mass m1 on a frictionless surface.
Assume friction coeficient between blocks is mu.
The lower block is attached to a spring with constant k.

Click the play button or you can drag the lower block horizontally, release the mouse and watch how friction force between blocks cause the top mass to move.
Due to the friction force between blocks, the velocity of top block is in the same direction of it's friction force.

Embed a running copy of this simulation
<applet code='users.br.ahmed.blockupdown_pkg.blockupdownApplet.class' archive='http://www.phy.ntnu.edu.tw/ntnujava/ejsuser/37048/ejs_blockupdown.jar' name='blockupdown6438' id='blockupdown6438' width='700' height='517' mayscript=true><param name='draggable' value='true'></applet>
Embed a running copy link(show simulation in a popuped window)
<a href='http://www.phy.ntnu.edu.tw/ntnujava/msg.php?smfejs=6438' target='smfejs'>Run simulation</a>

Full screen applet or Press the Alt key and the left mouse button to drag the applet off the browser and onto the desktop. This work is licensed under a Creative Commons Attribution 2.5 Taiwan License

• Please feel free to post your ideas about how to use the simulation for better teaching and learning.
• Post questions to be asked to help students to think, to explore.
• Upload worksheets as attached files to share with more users.

Let's work together. We can help more users understand physics conceptually and enjoy the fun of learning physics!