the adjacent diagram shows a heavy roller with it's axle at O which is to be raised on a pavement XY. if there is friction between roller and pavement, show by an arrow on the diagram the point of application and the direction of force to be applied. if pivoted at O,now will it go up?
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the adjacent diagram shows a heavy roller with it's axle at O which is to be raised on a pavement XY. if there is friction between roller and pavement, show by an arrow on the diagram the point of application and the direction of force to be applied. if pivoted at O,now will it go up?
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