Triangles: 214
Vertices: 166
More model informationThe model shows the orientation of forces on a man carrying a heavy box inside a rotating frame.
- Force of gravity: It always act in vertically downward direction;
- Contact force by the box;
- Normal force: Acted by the frame’s surface on to the person in vertically upward direction;
- Friction: Now this is important, the man is rotating and we know that for any object to rotate there has to be a force called centripetal force acting towards the centre of rotation. This centripetal force in this case is provided by Friction. Hence we know the direction of friction.
CC AttributionCreative Commons Attribution
Dec 27th 2016
Comments