Question

A body is at rest under the action of three forces, two of which are F₁ = 42, F₂ = 63. The third force is​

Answer 1

Answer:

-4i-6j

Explanation:

since body is at rest: sum of all forces=0

let third force be F3:

F1+F2+F3=0

=>F3=-F1-F2= -4i-6j