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If a particle is displaced from the poin...

If a particle is displaced from the point A(5, -5, -7) to the point B(6, 2, -2) under the influence of the forces `oversettoP_1=10hati-hatj+11hatk, oversettoP_2=4hati+5hatj+6hatk, oversettoP_3=-2hati+hatj-9hatk`, then the work done is :

A

87

B

85

C

81

D

none of these

Text Solution

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The correct Answer is:
A
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