The applet on Page 2 shows the motion of a block on an incline with or without friction. The incline is either at rest or accelerating horizontally. The forces acting on the block and three accelerations relevant to this situation can be displayed.

The motion can be observed either in the Lab or the Ramp (Incline) frame. The latter is a non-inertial frame when the incline is accelerating, and the corresponding fictitious force acting on the block can be displayed.

Details on how to use the applet are available under Applet Help on the applet's Help menu.