Mechanics

[cinder berry]

Can someone show me how to do this step by step?
The object is stationary.
Find the normal reaction (N)
and the horiztonal force F
I'm actually clueless

[formal pebble]

The object is stationary so it is in both parallel and perpendicular equilibrium

Resolve the weight of the object into perpendicular and parallel components

Also resolve F into perpendicular and parallel components

[cinder berry]

right......sooo... how do I resolve them into their vertical and horizontal components
I've been told to do that by many including yourself but I just dont know how

[formal pebble]

Perpendicular and parallel not vertical and horizontal

Ill draw it

[cinder berry]

oh ok tysm

[formal pebble]

This is the weight part

Do you understand why I've put what I put

[cinder berry]

ooh that makes more sense now tysm

[formal pebble]

And this for the F

[cinder berry]

tysm your a lifesaver 😭

[formal pebble]

Equate opposite parallel components and equate opposite perpendicular components

[formal pebble]

Btw in that F one I just put

The perpendicular arrow should be going towards the plane mb

Like that

[cinder berry]

oh right

[formal pebble]

Parallel equilibrium
Fcos25 = 3.4sin25
F=1.58....

I cba doing perpendicular you can figure it our

[cinder berry]

ah right because its stationary

[formal pebble]

Yea

[cinder berry]

im being real this explained it better than the teacher in 1 hour 😭

tysm again

[cinder berry]

no worries

[formal pebble]

I lied I can be bothered
Perpendicular equilibrium
3.4cos25 + Fsin25 = N
3.4cos25 + (1.58...)sin25 = N
N = 3.75