A particle acted on by constant forces \[4\,\hat{i}+\hat{j}-3\,\hat{k}\] and \[3\,\hat{i}+\hat{j}-\,\hat{k}\] is displaced from the point \[\hat{i}+2\hat{j}+3\,\hat{k}\] to the point \[5\,\hat{i}+4\,\hat{j}+\,\hat{k}\]. The total work done by the forces is
AIEEE Solved Paper-2003
A) 20 units
B) 30 units
C)40 units
D) 50 units
Correct Answer:
C
Solution :
Total force Displacement Total work done = F . d units