Question

Question #63e2c

Answer 1

`vec r`= - `68*1/2 hati` `-68*sqrt3/2 hatj` + `170*cos 20 hat j`-`170*sin20*hati`

Explanation:

The resultant disp is

`vec r`= - `68*1/2 hati` `-68*sqrt3/2 hatj` + `170*cos 20 hat j`-`170*sin20*hati` #.

by talking components along `hatj` and `hat i` we did it.

solve for the answer ,or you can leave it this way as non standard angles are used.