A particle has a mass 125grams and hangs on a string.
The particle is pulled aside by a force of 0.75N so that the string makes
In what direction is the force applied?
There are two possible answers.
As the diagram shows, we have three forces acting at a point which are in equilibrium.
This is an ideal situation to use Lami's Theorem, which is based on the sine rule.
Taking the second and third terms gives:
And with g = 9.8: