Topic: Work Energy and Power
Subtopic: Work Done by Constant and Variable Forces
A particle of mass 0.1 kg is subjected to a force which varies with distance as shown in figure. If it starts its journey from rest at x = 0, Work Done from x=0 to x = 12 m is:

Solution:
Area bounded by force time graph represents work done so,
Work= ½(12+4)×10= 80 J
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