Work, Power and EnergyHard
Question
For the path PQR in a conservative force field the amounts work done in carrying a body from P to Q and from Q to R are 5 Joule and 2 Joule respectively. The work done in carrying the body from P to R will be −
Options
A.7 Joule
B.3 Joule
C.√21 Joule
D.Zero
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