Question

Calculate the work done a force 7i - 3ĵ - 5k about the origin which acts on a

particle whose position vector is i + ĵ - k. Where i, ĵ and k represent unit vector along

x, y and z direction respectively

pls ans ​

Answer 1

Answer:

9

Explanation:

The formula for calculating work done is vector W=F.S

we have given force vector and position vector simply find dot product of both the vectors.

I hope you understood