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Velocity-time graph of a particle of mas...

Velocity-time graph of a particle of mass (2 kg) moving in a straight line is as shown in Fig. 9.20. Find the word done by all the forces acting on the particle. .

Text Solution

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The correct Answer is:
D
`W("All")=DeltaKE =K_(f)-K_(i)
`=1/2m(v_(f)^(2)-v_9i)^(2) =1/2 xx2 xx(0-20^(2))`
`=-400J`
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