InterviewSolution
Saved Bookmarks
InterviewSolution
| 1. |
The torque of force `F = -3 hat(i)+hat(j) + 5 hat(k)` acting on a point `r = 7 hat(i) + 3 hat(j) + hat(k)` about origin will beA. `14 hat(i)-38 hat(j)+16 hat(k)`B. `4hat(i)+4hat(j)+6hat(k)`C. `-14 hat(i)+38 hat(j)-16 hat(k)`D. `-21 hat(i)+3hat(j)+5hat(k)` |
|
Answer» Correct Answer - A Torque of the force, `tau=r xx F` `tau=|(hat(i),hat(j),hat(k)),(7,3,1),(-3,1,5)|=(14 hat(i)-38hat(j)+16 hat(k))` |
|