Four weights, of masses m1 = 6.50 kg, m2 = 3.80 kg, m3 = 10.70 kg, and m4 = 4.20 kg, are hanging from the ceiling as shown in the figure. They are connected with ropes. What is the tension in the rope connecting masses m1 and m2?

Think:
Think about the forces acting in between
. And then calculate the net force acting on the system along y axis using Newton’s second law.
Research:
Taking the help of a free body diagram, we can identify the forces acting on the system at the given points. In this case, in between
, the tension is directed in the upward direction and the weight of the three masses
will be in the downward direction.
Sketch:
Consider the free body diagram below showing the forces acting on the system,
Simplify:
Given data
Four weights of masses,
Using Newton’s second law we calculate the net force at the point connecting
,
