conical pendulum question (1 Viewer)

[bleakarcher]

q4 cambridge solutions solve the forces in the vertical so as to give Tcos(theta)+Nsin(theta)=mg, how is this?

 

[pokka]

since i don't know how to draw diagrams here, i'll just attach these images of my solution


I hope it makes sense

 

[pokka]

since i don't know how to draw diagrams here, i'll just attach these images of my solution
View attachment 23686
View attachment 23687
I hope it makes sense

oh yeh and most of the diagrams were taken from cambridge solutions just so you know

 

[bleakarcher]

thanks pokka for replying but how do u know that the angle between the normal force and the horizontal is theta as well?

 

[pokka]

 

[pokka]

ahhh thanks for the advice, i'll remember next time