Question

Hey can you help me with this? I know it is pretty easy but my brain gets frozen in summer

Answer 1

the forces are in balance so you can say that

\(\Sigma \vec F = \vec P + \vec Q + \vec R = 0\)

then using the usual axis, x left to right, y down up.....

\(\left(\begin{matrix}5 \\ 0\end{matrix}\right) + \left(\begin{matrix}0 \\ -3\end{matrix}\right) + \left(\begin{matrix} R_x \\ R_y\end{matrix}\right) = 0 \)

where \(\vec R = \left(\begin{matrix} R_x \\ R_y\end{matrix}\right) \)


so..those are the components, drawing them is always good idea, then work out the answers.

Answer 2

Thank you so much @IrishBoy123

Answer 3

mp

Answer 4

it has been a long time since i did vectors