The Student Room Group

Resolving Forces Q

Hiya, for some reason can simply not do this question! If anyone can help, thanks!




The diagram shows a particle of mass 2.6kg maintained in equilibrium in a vertical plane by forces of 5P N and 12P N which are perpendicular. Find

(a) Angle a, the angle at which the force of 5P N is inclined to the vertical,

(b) the value of P.


Although my diagram doesn't really show it, the two forces are supposed to be perpendicular lol!

Thanks for any help :smile:
Reply 1
Jess*
Hiya, for some reason can simply not do this question! If anyone can help, thanks!



Although my diagram doesn't really show it, the two forces are supposed to be perpendicular lol!

Thanks for any help :smile:


I attach an answer: I'm not sure whether it is correct or not.
Reply 2
Thanks, yes that is right!

I only got as far as 5sin(a) = 12sin (90-a) - all seems so simple now!!

Thank you very much :smile: