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Two forces f1 = 3hati - 2hatj + hatk and...

Two forces `f_1 = 3hati - 2hatj + hatk` and `f_2 = hati + 3hatj- 5hatk` acting on a particle at A move it to B . The work done,if the position vector of A and B are `-2hati + 5hatk` and `3hati-7hatj+2hatk`, is

A

20 units

B

7 units

C

25 units

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
C
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