what is work done by gravity on incline plane
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at the work done by various forces as it moves up a rough inclined slope at a constant speed. ... the work doneagainst gravity and the work doneagainst friction. so how do we answer that first question then the work doneagainst gravity
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its should be mgh or -mgh
because
work done = F×S (F=ma and a=g. and S= h I.e is height )
work done = mgh
if object is going upward then, minus should be added
work done= -mgh
because
work done = F×S (F=ma and a=g. and S= h I.e is height )
work done = mgh
if object is going upward then, minus should be added
work done= -mgh
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