Physics
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Easy
Question
Velocitytime graph of a particle of mass 2 kg moving in a straight line is as shown in figure. Work done by all forces on the particle is
 400 J


 200 J
The correct answer is:
Initial velocity of particle,
Final velocity of the particle,
According to workenergy theorem,
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=area of ABNM + area of CDEN  area of EFGH + area of HIJ
=
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=
The relationship between the force F and position of a body is as shown in figure. The work done in displacing the body from to m will be
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Work done=area enclosed by graph
=area of ABNM + area of CDEN  area of EFGH + area of HIJ
=
=area of ABNM + area of CDEN  area of EFGH + area of HIJ
=