Rankers Physics
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: Image related to
60 J
80 J
100 J
120 J

Solution:

Area bounded by force time graph represents work done so, 

Work= ½(12+4)×10= 80 J

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