question_answer

Forces of magnitudes 3 and 2 units acting in the directions \[5i+3j+4k\] and \[3i+4j-5k\]respectively act on a particle which is displaced from the points \[(1,-1,-1)\] to \[(3,\,\,3,\,\,1)\].The work done by the forces is equal to

A)  \[50\sqrt{2}\]unit                      

B)  \[40\sqrt{2}\]unit

C)  \[\frac{57}{5}\sqrt{2}\]unit       

D)  \[8\sqrt{2}\]unit

E)  None of these