Triangle of
Forces
- The ends of a string 9 m long
are tied to two points 6m apart on a horizontal beam. A 10 N weight is
attached to the string 4 m from one end. Find the tension in each part of
the string.
- A string 7 m long is attached to
two points 5 m apart on a horizontal bar. A 5 N weight is attached to the
string 3 m from one end. Find the tension in each part of the string.
- Two forces of 10 N and 16 N act
at 60° to each other. What is the magnitude and direction of the force
needed to balance them?
- Three forces of magnitude 4 N, 6
N and 5 N are in equilibrium. Find the angles between them.
- A 12 N weight is supported by
two strings, their tensions being 8.2 N and 6.4 N. Find the angle each
string makes with the horizontal.
